DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x05 on both Osmo Action 4 and 5

[marine-ecologist]

I've been testing the Osmo Action GPS Bluetooth Remote Controller code with an Adafruit ESP32-C6 paired with a LC76G GNSS (+ a neopixel on GPIO 8). The ESP-IDF builds as expected and uploads to the board, but i'm getting seperate protocol connection problems with the Camera status subscription CmdSet 0x1D and CmdID 0x05 with both the Osmo Action 4 and 5 cameras.

Osmo 5:

Completes "Updating Bluetooth remote controller takes approximately 2 min", and shows as connected on the Osmo 5 screen, but fails to progress beyond BLE connection to protocol:

Sequence below:

• RGB LED initialized
• uart_rx_task_GPS running
• BLE init successfully
• Data layer initialized successfully
• BLE connected successfully
• DJI_PROTOCOL_DATA_PROCESSOR

....

• DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x05

Logs below:

I (1411) LOGIC_LIGHT: LED state timer started successfully
I (1411) LOGIC_LIGHT: LED blink timer started successfully
I (1411) LOGIC_GPS: uart_rx_task_GPS are running

I (3411) BLE_INIT: Using main XTAL as clock source, chip ver: 1
I (3411) BLE_INIT: ble controller commit:[1304a9d]
I (3411) BLE_INIT: Bluetooth MAC: 9c:9e:6e:79:62:9a
I (3411) phy_init: phy_version 331,5b89037,Mar  3 2025,16:01:12
I (3501) phy: libbtbb version: ec2ecba, Mar  3 2025, 16:01:27
I (3521) BLE: GATTC register OK, app_id=0, gattc_if=3
I (3521) BLE: ble_init success!
I (3521) LOGIC_CONNECT: BLE init successfully
I (4521) LOGIC_KEY: Data layer not initialized, initializing now...
I (4521) DATA: Data layer initialized successfully
I (4521) LOGIC_KEY: Current state is 0, disconnecting Bluetooth...
I (4521) LOGIC_CONNECT: Disconnecting camera
I (4521) LOGIC_CONNECT: Camera disconnected successfully
I (4531) LOGIC_KEY: Attempting to connect Bluetooth...
I (4541) BLE: ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT
I (4541) BLE: Starting to scan...
I (4541) LOGIC_CONNECT: Waiting up to 5s for BLE to connect...
I (7541) BLE: scan stopped
I (7541) BLE: Connecting to device: 58:b8:58:93:61:47
I (7541) BLE: Try to connect target device name = Osmo5Seagrass1

I (7541) BLE: Scan stopped after timeout
I (7761) BLE: Connected, conn_id=0
I (7761) BLE: Open success, MTU=23
I (7851) LOGIC_CONNECT: BLE connected successfully
I (7851) LOGIC_CONNECT: Waiting up to 30s for characteristic handles discovery...
I (8521) BLE: MTU=500
I (8521) BLE: Service found: start=40, end=65535
I (8521) BLE: Service search complete, next get char by UUID
I (8521) BLE: Notify Char found, handle=0x2d
I (8521) BLE: Write Char found, handle=0x30
I (8551) LOGIC_CONNECT: Required characteristic handles found
I (8551) BLE: Notify register success, handle=0x2d
I (10551) LOGIC_CONNECT: BLE connect successfully
I (10551) LOGIC_KEY: Successfully connected Bluetooth.
I (10551) LOGIC_CONNECT: connect_logic_protocol_connect: Starting protocol connection
I (10551) LOGIC_CONNECT: Sending connection request to camera...
I (10561) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for connection_request_command_frame: 33
Frame Length: 51
I (10571) LOGIC_COMMAND: Protocol frame created successfully, length: 51
ByteArray: [AA, 33, 00, 02, 00, 00, 00, 00, 00, 01, 58, 7F, 00, 19, 03, 57, 34, 12, 06, 38, 34, 56, 78, 9A, BC, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 14, 1D, 00, 00, 00, 00, 7C, BE, 94, F2]
I (10591) LOGIC_COMMAND: Data frame sent, waiting for result...
I (10621) DATA: Notification received, attempting to parse...
I (10621) DATA: aa 1b 00 20 00 00 00 00 00 01 a4 7c 00 19 44 ff
I (10621) DATA: 00 00 00 00 00 00 00 42 d8 ed 0f
I (10621) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (10631) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x19
I (10631) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x19, CmdType: 0x20
I (10641) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Connection Request data, received data length: 9
I (10651) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing response frame...
I (10651) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
I (10661) DATA: Data segment parsed successfully
I (10671) DATA: Parsed seq = 0x0001, cmd_set=0x0000, cmd_id=0x0019
I (10671) DATA: Notification received, attempting to parse...
I (10681) DATA: aa 33 00 02 00 00 00 00 01 00 98 2f 00 19 44 ff
I (10681) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (10691) DATA: 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 e1
I (10701) DATA: ea 9c 15
I (10701) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (10701) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x19
I (10711) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x19, CmdType: 0x02
I (10721) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Connection Request data, received data length: 33
I (10721) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing command frame...
I (10731) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
I (10741) DATA: Data segment parsed successfully
I (10741) DATA: Parsed seq = 0x0100, cmd_set=0x0000, cmd_id=0x0019
W (10751) DATA: No waiting entry found for seq=0x0100, creating a new entry by cmd_set=0x0000 cmd_id=0x0019
I (10761) DATA: New entry allocated for seq=0x0100
I (10761) LOGIC_COMMAND: Command executed successfully
I (10771) LOGIC_CONNECT: Connection request accepted, waiting for camera to send connection command...
I (10781) LOGIC_CONNECT: Camera approved the connection, sending response...
I (10781) LOGIC_CONNECT: Constructed connection response, sending...
I (10791) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for connection_request_response_frame: 9
Frame Length: 27
I (10801) LOGIC_COMMAND: Protocol frame created successfully, length: 27
ByteArray: [AA, 1B, 00, 20, 00, 00, 00, 00, 01, 00, 64, 2C, 00, 19, 03, 57, 34, 12, 00, 00, 00, 00, 00, 4A, BC, EC, DB]
I (10821) LOGIC_COMMAND: Data frame sent without response.
I (10821) LOGIC_COMMAND: Command executed successfully
I (10831) LOGIC_CONNECT: Connection successfully established with camera.
I (10831) LOGIC_KEY: Successfully connected to camera.
I (10841) LOGIC_COMMAND: command_logic_get_version: Querying device version
Creator function is NULL for CmdSet: 0x00, CmdID: 0x00
Frame Length: 18
I (10851) LOGIC_COMMAND: Protocol frame created successfully, length: 18
ByteArray: [AA, 12, 00, 02, 00, 00, 00, 00, 00, 02, 8C, 2F, 00, 00, 27, 85, 19, F1]
I (10871) LOGIC_COMMAND: Data frame sent, waiting for result...
I (10901) DATA: Notification received, attempting to parse...
I (10901) DATA: aa 72 00 20 00 00 00 00 00 02 26 2f 00 00 00 00
I (10901) DATA: 44 4a 49 2d 41 43 54 49 4f 4e 34 00 00 00 00 00
I (10901) DATA: 53 44 4b 2d 76 31 2e 31 20 44 45 42 55 47 20 41
I (10911) DATA: 43 32 30 33 2d 30 33 2e 30 34 2e 38 30 2e 31 35
I (10921) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (10921) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (10931) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7d 60
I (10931) DATA: 0a 8d
I (10931) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (10941) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x00
I (10941) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x00, CmdType: 0x20
I (10951) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Version Query Response, received data length: 96
I (10961) DJI_PROTOCOL_DATA_DESCRIPTORS: Version Query Response parsed successfully. ack_result: 0, product_id: DJI-ACTION4, sdk_version: SDK-v1.1 DEBUG AC203-03.04.80.15
I (10981) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x00
I (10981) DATA: Data segment parsed successfully
I (10991) DATA: Parsed seq = 0x0002, cmd_set=0x0000, cmd_id=0x0000
I (10991) LOGIC_COMMAND: Command executed successfully
I (11001) LOGIC_COMMAND: Version Query Response: ack_result=0, product_id=DJI-ACTION4, sdk_version=SDK-v1.1 DEBUG AC203-03.04.80.15
I (11011) LOGIC_STATUS: Subscribing to Camera Status with push_mode: 3, push_freq: 1
I (11021) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for camera_status_subscription_command_frame: 6
I (11031) DJI_PROTOCOL_DATA_DESCRIPTORS: Memory allocation succeeded for command frame, copying data...
Frame Length: 24
I (11041) LOGIC_COMMAND: Protocol frame created successfully, length: 24
ByteArray: [AA, 18, 00, 00, 00, 00, 00, 00, 00, 03, 10, 8F, 1D, 05, 03, 01, 00, 00, 00, 00, 25, E5, 5E, A3]
I (11061) LOGIC_COMMAND: Data frame sent without response.
I (11061) LOGIC_COMMAND: Command executed successfully
I (11061) LOGIC_KEY: Successfully subscribed to camera status.
I (11101) DATA: Notification received, attempting to parse...
I (11101) DATA: aa 17 00 20 00 00 00 00 00 03 70 bd 1d 05 00 00
I (11101) DATA: 00 00 00 66 46 32 67
I (11101) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11111) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x05
I (11111) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x05, CmdType: 0x20
Parser function is NULL for CmdSet: 0x1D, CmdID: 0x05
E (11121) DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x05
E (11131) DATA: Failed to parse data segment, error: 0

then loops with:

I (169951) DATA: Entry for cmd_set=0x001D cmd_id=0x0002 already exists, it will be overwritten
I (169951) DATA: New entry allocated for seq=0x15C1
I (170441) DATA: Notification received, attempting to parse...
I (170441) DATA: aa 38 00 01 00 44 02 00 09 c3 6e 39 1d 02 05 01
I (170441) DATA: 04 09 00 b8 0b 00 01 00 00 00 00 00 00 a2 a0 02
I (170441) DATA: 00 4c cb 00 00 00 00 00 00 00 00 00 00 00 00 00
I (170451) DATA: 00 00 00 52 f1 44 65 23
I (170451) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (170461) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (170461) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (170471) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 38
I (170481) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x1D and CmdID 0x02
I (170491) DATA: Data segment parsed successfully
I (170491) DATA: Parsed seq = 0x09C3, cmd_set=0x001D, cmd_id=0x0002
W (170501) DATA: No waiting entry found for seq=0x09C3, creating a new entry by cmd_set=0x001D cmd_id=0x0002
I (170511) DATA: Entry for cmd_set=0x001D cmd_id=0x0002 already exists, it will be overwritten
I (170511) DATA: New entry allocated for seq=0x09C3
I (170981) DATA: Notification received, attempting to parse...
I (170981) DATA: aa 38 00 01 00 44 02 00 fd c4 69 3b 1d 02 05 01
I (170981) DATA: 04 09 00 b8 0b 00 01 00 00 00 00 00 00 a2 a0 02
I (170981) DATA: 00 4c cb 00 00 00 00 00 00 00 00 00 00 00 00 00
I (170991) DATA: 00 00 00 52 e5 02 0e 91
I (170991) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (171001) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (171001) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (171011) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 38
I (171021) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x1D and CmdID 0x02
I (171031) DATA: Data segment parsed successfully
I (171031) DATA: Parsed seq = 0xFDC4, cmd_set=0x001D, cmd_id=0x0002
W (171041) DATA: No waiting entry found for seq=0xFDC4, creating a new entry by cmd_set=0x001D cmd_id=0x0002

Osmo 4:

Protocol connection issue (the screen is stuck at "Updating Bluetooth remote controller takes approximately 2 min" which times out to "Update failed. Restart the camera unit and try again"). No connection display on screen

Sequence below::

• RGB LED initialized
• uart_rx_task_GPS running
• BLE init successfully
• Data layer initialized successfully
• BLE connected successfully
• DJI_PROTOCOL_DATA_PROCESSOR

....

• DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x05, CmdType: 0x20
  Parser function is NULL for CmdSet: 0x1D, CmdID: 0x05
• E (11921) DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x05
• E (11931) DATA: Failed to parse data segment, error: 0

I (23) boot: ESP-IDF v5.5-dev-3822-g27d68f57e6 2nd stage bootloader
I (23) boot: compile time May 23 2025 10:17:02
I (24) boot: chip revision: v0.1
I (24) boot: efuse block revision: v0.3
I (28) boot.esp32c6: SPI Speed      : 80MHz
I (32) boot.esp32c6: SPI Mode       : DIO
I (36) boot.esp32c6: SPI Flash Size : 2MB
I (39) boot: Enabling RNG early entropy source...
I (44) boot: Partition Table:
I (46) boot: ## Label            Usage          Type ST Offset   Length
I (53) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (59) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (66) boot:  2 factory          factory app      00 00 00010000 00100000
I (72) boot: End of partition table
I (76) esp_image: segment 0: paddr=00010020 vaddr=420b8020 size=25c2ch (154668) map
I (112) esp_image: segment 1: paddr=00035c54 vaddr=40800000 size=023c4h (  9156) load
I (115) esp_image: segment 2: paddr=00038020 vaddr=42000020 size=b7720h (751392) map
I (257) esp_image: segment 3: paddr=000ef748 vaddr=408023c4 size=142f4h ( 82676) load
I (275) esp_image: segment 4: paddr=00103a44 vaddr=408166c0 size=025a8h (  9640) load
I (283) boot: Loaded app from partition at offset 0x10000
I (283) boot: Disabling RNG early entropy source...
I (293) cpu_start: Unicore app
I (302) cpu_start: Pro cpu start user code
I (302) cpu_start: cpu freq: 160000000 Hz
I (302) app_init: Application information:
I (302) app_init: Project name:     dji_camera_bluetooth_control
I (307) app_init: App version:      da70c1a-dirty
I (312) app_init: Compile time:     May 23 2025 10:16:51
I (317) app_init: ELF file SHA256:  ee4d64926...
I (321) app_init: ESP-IDF:          v5.5-dev-3822-g27d68f57e6
I (327) efuse_init: Min chip rev:     v0.0
I (331) efuse_init: Max chip rev:     v0.99 
I (335) efuse_init: Chip rev:         v0.1
I (338) heap_init: Initializing. RAM available for dynamic allocation:
I (345) heap_init: At 4081D6A0 len 0005EF70 (379 KiB): RAM
I (350) heap_init: At 4087C610 len 00002F54 (11 KiB): RAM
I (355) heap_init: At 50000000 len 00003FE8 (15 KiB): RTCRAM
I (361) spi_flash: detected chip: generic
I (364) spi_flash: flash io: dio
W (367) spi_flash: Detected size(4096k) larger than the size in the binary image header(2048k). Using the size in the binary image header.
I (379) sleep_gpio: Configure to isolate all GPIO pins in sleep state
I (386) sleep_gpio: Enable automatic switching of GPIO sleep configuration
I (392) coexist: coex firmware version: 7b9a184
I (396) coexist: coexist rom version 5b8dcfa
I (401) main_task: Started on CPU0
I (401) main_task: Calling app_main()
I (401) LOGIC_LIGHT: RGB LED initialized
I (1411) LOGIC_LIGHT: LED state timer started successfully
I (1411) LOGIC_LIGHT: LED blink timer started successfully
I (1411) LOGIC_GPS: uart_rx_task_GPS are running

I (3411) BLE_INIT: Using main XTAL as clock source, chip ver: 1
I (3411) BLE_INIT: ble controller commit:[1304a9d]
I (3411) BLE_INIT: Bluetooth MAC: 
I (3411) phy_init: phy_version 331,5b89037,Mar  3 2025,16:01:12
I (3501) phy: libbtbb version: ec2ecba, Mar  3 2025, 16:01:27
I (3521) BLE: GATTC register OK, app_id=0, gattc_if=3
I (3521) BLE: ble_init success!
I (3521) LOGIC_CONNECT: BLE init successfully
I (4521) LOGIC_KEY: Data layer not initialized, initializing now...
I (4521) DATA: Data layer initialized successfully
I (4521) LOGIC_KEY: Current state is 0, disconnecting Bluetooth...
I (4521) LOGIC_CONNECT: Disconnecting camera
I (4521) LOGIC_CONNECT: Camera disconnected successfully
I (4531) LOGIC_KEY: Attempting to connect Bluetooth...
I (4541) BLE: ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT
I (4541) BLE: Starting to scan...
I (4541) LOGIC_CONNECT: Waiting up to 5s for BLE to connect...
I (7541) BLE: scan stopped
I (7541) BLE: Connecting to device: e4:7a:2c:bc:ef:64
I (7541) BLE: Try to connect target device name = OsmoAction4-EF63
I (7541) BLE: Scan stopped after timeout
I (7621) BLE: Connected, conn_id=0
I (7621) BLE: Open success, MTU=23
I (7651) LOGIC_CONNECT: BLE connected successfully
I (7651) LOGIC_CONNECT: Waiting up to 30s for characteristic handles discovery...
I (9101) BLE: MTU=500
I (9101) BLE: Service found: start=8, end=19
I (9101) BLE: Service search complete, next get char by UUID
I (9101) BLE: Notify Char found, handle=0xd
I (9101) BLE: Write Char found, handle=0x10
I (9151) LOGIC_CONNECT: Required characteristic handles found
I (9151) BLE: Notify register success, handle=0xd
I (11151) LOGIC_CONNECT: BLE connect successfully
I (11151) LOGIC_KEY: Successfully connected Bluetooth.
I (11151) LOGIC_CONNECT: connect_logic_protocol_connect: Starting protocol connection
I (11151) LOGIC_CONNECT: Sending connection request to camera...
I (11161) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for connection_request_command_frame: 33
Frame Length: 51
I (11171) LOGIC_COMMAND: Protocol frame created successfully, length: 51
ByteArray: [AA, 33, 00, 02, 00, 00, 00, 00, 00, 01, 58, 7F, 00, 19, 03, 57, 34, 12, 06, 38, 34, 56, 78, 9A, BC, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9E, 17, 00, 00, 00, 00, 63, 91, 0F, 07]
I (11191) LOGIC_COMMAND: Data frame sent, waiting for result...
I (11201) DATA: Notification received, attempting to parse...
I (11201) DATA: aa 1b 00 20 00 00 00 00 00 01 a4 7c 00 19 33 ff
I (11211) DATA: 00 00 00 00 00 00 00 5e 76 2f 9b
I (11211) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11221) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x19
I (11221) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x19, CmdType: 0x20
I (11231) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Connection Request data, received data length: 9
I (11241) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing response frame...
I (11251) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
I (11251) DATA: Data segment parsed successfully
I (11261) DATA: Parsed seq = 0x0001, cmd_set=0x0000, cmd_id=0x0019
I (11261) LOGIC_COMMAND: Command executed successfully
I (11271) LOGIC_CONNECT: Connection request accepted, waiting for camera to send connection command...
I (11301) DATA: Notification received, attempting to parse...
I (11301) DATA: aa 33 00 02 00 00 00 00 73 00 bc 8f 00 19 33 ff
I (11301) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (11301) DATA: 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 0d
I (11311) DATA: 64 a7 26
I (11311) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11311) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x19
I (11321) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x19, CmdType: 0x02
I (11331) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Connection Request data, received data length: 33
I (11341) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing command frame...
I (11341) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
I (11351) DATA: Data segment parsed successfully
I (11351) DATA: Parsed seq = 0x7300, cmd_set=0x0000, cmd_id=0x0019
W (11361) DATA: No waiting entry found for seq=0x7300, creating a new entry by cmd_set=0x0000 cmd_id=0x0019
I (11371) DATA: New entry allocated for seq=0x7300
I (11371) LOGIC_CONNECT: Camera approved the connection, sending response...
I (11381) LOGIC_CONNECT: Constructed connection response, sending...
I (11391) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for connection_request_response_frame: 9
Frame Length: 27
I (11401) LOGIC_COMMAND: Protocol frame created successfully, length: 27
ByteArray: [AA, 1B, 00, 20, 00, 00, 00, 00, 73, 00, 40, 8C, 00, 19, 03, 57, 34, 12, 00, 00, 00, 00, 00, 0C, 42, 07, 7E]
I (11421) LOGIC_COMMAND: Data frame sent without response.
I (11421) LOGIC_COMMAND: Command executed successfully
I (11421) LOGIC_CONNECT: Connection successfully established with camera.
I (11431) LOGIC_KEY: Successfully connected to camera.
I (11441) LOGIC_COMMAND: command_logic_get_version: Querying device version
Creator function is NULL for CmdSet: 0x00, CmdID: 0x00
Frame Length: 18
I (11451) LOGIC_COMMAND: Protocol frame created successfully, length: 18
ByteArray: [AA, 12, 00, 02, 00, 00, 00, 00, 00, 02, 8C, 2F, 00, 00, 27, 85, 19, F1]
I (11461) LOGIC_COMMAND: Data frame sent, waiting for result...
I (11551) DATA: Notification received, attempting to parse...
I (11551) DATA: aa 72 00 20 00 00 00 00 00 02 26 2f 00 00 00 00
I (11551) DATA: 44 4a 49 2d 41 43 54 49 4f 4e 34 00 00 00 00 00
I (11561) DATA: 53 44 4b 2d 76 31 2e 31 20 44 45 42 55 47 20 41
I (11561) DATA: 43 32 30 33 2d 30 33 2e 30 34 2e 38 30 2e 31 35
I (11571) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (11571) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (11581) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7d 60
I (11581) DATA: 0a 8d
I (11591) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11591) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x00
I (11601) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x00, CmdType: 0x20
I (11601) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Version Query Response, received data length: 96
I (11611) DJI_PROTOCOL_DATA_DESCRIPTORS: Version Query Response parsed successfully. ack_result: 0, product_id: DJI-ACTION4, sdk_version: SDK-v1.1 DEBUG AC203-03.04.80.15
I (11631) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x00
I (11631) DATA: Data segment parsed successfully
I (11641) DATA: Parsed seq = 0x0002, cmd_set=0x0000, cmd_id=0x0000
I (11641) LOGIC_COMMAND: Command executed successfully
I (11651) LOGIC_COMMAND: Version Query Response: ack_result=0, product_id=DJI-ACTION4, sdk_version=SDK-v1.1 DEBUG AC203-03.04.80.15
I (11661) LOGIC_STATUS: Subscribing to Camera Status with push_mode: 3, push_freq: 1
I (11671) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for camera_status_subscription_command_frame: 6
I (11681) DJI_PROTOCOL_DATA_DESCRIPTORS: Memory allocation succeeded for command frame, copying data...
Frame Length: 24
I (11691) LOGIC_COMMAND: Protocol frame created successfully, length: 24
ByteArray: [AA, 18, 00, 00, 00, 00, 00, 00, 00, 03, 10, 8F, 1D, 05, 03, 01, 00, 00, 00, 00, 25, E5, 5E, A3]
I (11711) LOGIC_COMMAND: Data frame sent without response.
I (11711) LOGIC_COMMAND: Command executed successfully
I (11721) LOGIC_KEY: Successfully subscribed to camera status.
I (11901) DATA: Notification received, attempting to parse...
I (11901) DATA: aa 17 00 20 00 00 00 00 00 03 70 bd 1d 05 00 00
I (11901) DATA: 00 00 00 66 46 32 67
I (11901) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11901) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x05
I (11911) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x05, CmdType: 0x20
Parser function is NULL for CmdSet: 0x1D, CmdID: 0x05
E (11921) DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x05
E (11931) DATA: Failed to parse data segment, error: 0
I (11931) DATA: Parsed seq = 0x0003, cmd_set=0x001D, cmd_id=0x0005
W (11941) DATA: No waiting entry found for seq=0x0003, creating a new entry by cmd_set=0x001D cmd_id=0x0005
I (11951) DATA: New entry allocated for seq=0x0003
I (12251) DATA: Notification received, attempting to parse...
I (12251) DATA: aa 1a 00 02 00 41 40 31 88 00 74 2e 00 12 33 ff
I (12251) DATA: 00 00 00 00 00 00 4a d8 1b 94
I (12251) DJI_PROTOCOL_PARSER: Frame parsed successfully
W (12261) DJI_PROTOCOL_PARSER: No descriptor found for CmdSet 0x00 and CmdID 0x12, trying structure descriptor
E (12271) DATA: Failed to parse data segment, error: 0
I (12271) DATA: Parsed seq = 0x8800, cmd_set=0x0000, cmd_id=0x0012
W (12281) DATA: No waiting entry found for seq=0x8800, creating a new entry by cmd_set=0x0000 cmd_id=0x0012
I (12291) DATA: New entry allocated for seq=0x8800
I (12451) DATA: Notification received, attempting to parse...
I (12451) DATA: aa 31 00 01 00 00 00 00 59 15 48 40 1d 02 01 01
I (12451) DATA: 10 03 01 00 00 00 00 00 00 00 00 00 00 a2 a0 02
I (12451) DATA: 00 00 00 00 00 6c 38 00 00 00 00 00 00 79 fd c7
I (12461) DATA: 3c
I (12461) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (12461) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (12471) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (12481) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 31
E (12491) DJI_PROTOCOL_DATA_DESCRIPTORS: camera_status_push_data_parser: Data length too short for command frame. Expected: 38, Got: 31
E (12501) DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x02
E (12501) DATA: Failed to parse data segment, error: 0

[marine-ecologist]

From what I can understand from the protocol_data_segment.md:

CmdSet: 0x1D, CmdID: 0x05 -  Camera Status Subscription message
CmdType: 0x20 | 0x20 = 00100000b - Command frame (bit 5 = 1), response not required
Parser function is NULL - No handler (parser function) registered for (0x1D, 0x05)

i.e. the camera is pushing a command, but the C6-GPS has no handler registered for it.

Any advice appreciated, and thanks again for opening up the DJI R SDK protocol for the Osmo!

[dji-eric]

Hi @marine-ecologist ,
thanks for using this project.
I will take this problem, and reply later.

[marine-ecologist]

Ping @dji-eric any updates? I'm happy to test any code edits.

[dji-eric]

@djizachy CC

[djizachy]

1D05 is a command frame for subscribing to the camera status. The camera will send 1D02 command frames. Therefore, it is normal that no parser is registered for 1D05. You can ignore this prompt.

When you encounter a prompt for a Bluetooth remote controller update, make sure the fw_version field of the 0019 command frame is 0. At this time, the camera will not push firmware updates to the remote controller (this is for DJI GPS Bluetooth remote controllers, not for third parties).

[marine-ecologist]

Hi @djizachy,

I've edited ../logic/connect_logic.c and changed .fw_version = 0 to force zero and disable firmware push:

 // 构造连接请求命令帧
    // Construct connection request command frame
    connection_request_command_frame connection_request = {
        .device_id = device_id,
        .mac_addr_len = mac_addr_len,
        .fw_version = 0, // 🔒 force to zero to disable firmware push
        .verify_mode = verify_mode,
        .verify_data = verify_data,
    };

I still can't get it to work with Osmo Action 4 or 5.
Help would be greatly appreciated.

---

Summary

DJI Osmo Action 5: BLE connects, but there's still problems with connecting to the protocol (steady 🔵, doesn't progress to 🟢 or 🟣 ).

DJI Osmo Action 4: BLE connects (steady 🔵), but displays a new additional error (12027) DJI_PROTOCOL_DATA_DESCRIPTORS: camera_status_push_data_parser: Data length too short for command frame. Expected: 38, Got: 31 and doesn't connect to the protocol (🟢 or 🟣).

---

DJI Osmo Action 5:

Output from the monitor below:

I (1416) LOGIC_LIGHT: LED state timer started successfully
I (1416) LOGIC_LIGHT: LED blink timer started successfully
I (1416) LOGIC_GPS: uart_rx_task_GPS are running

I (3416) BLE_INIT: Using main XTAL as clock source, chip ver: 1
I (3416) BLE_INIT: ble controller commit:[1304a9d]
I (3426) BLE_INIT: Bluetooth MAC: 9c:9e:6e:79:62:9a
I (3426) phy_init: phy_version 331,5b89037,Mar  3 2025,16:01:12
I (3506) phy: libbtbb version: ec2ecba, Mar  3 2025, 16:01:27
I (3526) BLE: GATTC register OK, app_id=0, gattc_if=3
I (3526) BLE: ble_init success!
I (3526) LOGIC_CONNECT: BLE init successfully
I (4526) LOGIC_KEY: Data layer not initialized, initializing now...
I (4526) DATA: Data layer initialized successfully
I (4526) LOGIC_KEY: Current state is 0, disconnecting Bluetooth...
I (4526) LOGIC_CONNECT: Disconnecting camera
I (4526) LOGIC_CONNECT: Camera disconnected successfully
I (4536) LOGIC_KEY: Attempting to connect Bluetooth...
I (4546) BLE: ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT
I (4546) BLE: Starting to scan...
I (4546) LOGIC_CONNECT: Waiting up to 5s for BLE to connect...
I (7546) BLE: scan stopped
I (7546) BLE: Connecting to device: 58:b8:58:93:61:47
I (7546) BLE: Try to connect target device name = Osmo5Seagrass1

I (7546) BLE: Scan stopped after timeout
I (7626) BLE: Connected, conn_id=0
I (7626) BLE: Open success, MTU=23
I (7656) LOGIC_CONNECT: BLE connected successfully
I (7656) LOGIC_CONNECT: Waiting up to 30s for characteristic handles discovery...
I (8386) BLE: MTU=500
I (8386) BLE: Service found: start=40, end=65535
I (8386) BLE: Service search complete, next get char by UUID
I (8386) BLE: Notify Char found, handle=0x2d
I (8386) BLE: Write Char found, handle=0x30
I (8456) LOGIC_CONNECT: Required characteristic handles found
I (8456) BLE: Notify register success, handle=0x2d
I (10456) LOGIC_CONNECT: BLE connect successfully
I (10456) LOGIC_KEY: Successfully connected Bluetooth.
I (10456) LOGIC_CONNECT: connect_logic_protocol_connect: Starting protocol connection
I (10456) LOGIC_CONNECT: Sending connection request to camera...
I (10466) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for connection_request_command_frame: 33
Frame Length: 51
I (10476) LOGIC_COMMAND: Protocol frame created successfully, length: 51
ByteArray: [AA, 33, 00, 02, 00, 00, 00, 00, 00, 01, 58, 7F, 00, 19, 03, 57, 34, 12, 06, 38, 34, 56, 78, 9A, BC, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 14, 1D, 00, 00, 00, 00, 7C, BE, 94, F2]
I (10496) LOGIC_COMMAND: Data frame sent, waiting for result...
I (10526) DATA: Notification received, attempting to parse...
I (10526) DATA: aa 1b 00 20 00 00 00 00 00 01 a4 7c 00 19 44 ff
I (10526) DATA: 00 00 00 00 00 00 00 42 d8 ed 0f
I (10526) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (10536) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x19
I (10536) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x19, CmdType: 0x20
I (10546) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Connection Request data, received data length: 9
I (10556) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing response frame...
I (10566) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
I (10566) DATA: Data segment parsed successfully
I (10576) DATA: Parsed seq = 0x0001, cmd_set=0x0000, cmd_id=0x0019
I (10576) DATA: Notification received, attempting to parse...
I (10586) DATA: aa 33 00 02 00 00 00 00 01 00 98 2f 00 19 44 ff
I (10586) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (10596) DATA: 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 e1
I (10606) DATA: ea 9c 15
I (10606) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (10606) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x19
I (10616) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x19, CmdType: 0x02
I (10626) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Connection Request data, received data length: 33
I (10626) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing command frame...
I (10636) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
I (10646) DATA: Data segment parsed successfully
I (10646) DATA: Parsed seq = 0x0100, cmd_set=0x0000, cmd_id=0x0019
W (10656) DATA: No waiting entry found for seq=0x0100, creating a new entry by cmd_set=0x0000 cmd_id=0x0019
I (10666) DATA: New entry allocated for seq=0x0100
I (10666) LOGIC_COMMAND: Command executed successfully
I (10676) LOGIC_CONNECT: Connection request accepted, waiting for camera to send connection command...
I (10686) LOGIC_CONNECT: Camera approved the connection, sending response...
I (10686) LOGIC_CONNECT: Constructed connection response, sending...
I (10696) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for connection_request_response_frame: 9
Frame Length: 27
I (10706) LOGIC_COMMAND: Protocol frame created successfully, length: 27
ByteArray: [AA, 1B, 00, 20, 00, 00, 00, 00, 01, 00, 64, 2C, 00, 19, 03, 57, 34, 12, 00, 00, 00, 00, 00, 4A, BC, EC, DB]
I (10726) LOGIC_COMMAND: Data frame sent without response.
I (10726) LOGIC_COMMAND: Command executed successfully
I (10736) LOGIC_CONNECT: Connection successfully established with camera.
I (10736) LOGIC_KEY: Successfully connected to camera.
I (10746) LOGIC_COMMAND: command_logic_get_version: Querying device version
Creator function is NULL for CmdSet: 0x00, CmdID: 0x00
Frame Length: 18
I (10756) LOGIC_COMMAND: Protocol frame created successfully, length: 18
ByteArray: [AA, 12, 00, 02, 00, 00, 00, 00, 00, 02, 8C, 2F, 00, 00, 27, 85, 19, F1]
I (10776) LOGIC_COMMAND: Data frame sent, waiting for result...
I (10806) DATA: Notification received, attempting to parse...
I (10806) DATA: aa 72 00 20 00 00 00 00 00 02 26 2f 00 00 00 00
I (10806) DATA: 44 4a 49 2d 41 43 54 49 4f 4e 34 00 00 00 00 00
I (10806) DATA: 53 44 4b 2d 76 31 2e 31 20 44 45 42 55 47 20 41
I (10816) DATA: 43 32 30 33 2d 30 33 2e 30 34 2e 38 30 2e 31 35
I (10826) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (10826) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (10836) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7d 60
I (10836) DATA: 0a 8d
I (10836) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (10846) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x00
I (10846) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x00, CmdType: 0x20
I (10856) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Version Query Response, received data length: 96
I (10866) DJI_PROTOCOL_DATA_DESCRIPTORS: Version Query Response parsed successfully. ack_result: 0, product_id: DJI-ACTION4, sdk_version: SDK-v1.1 DEBUG AC203-03.04.80.15
I (10886) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x00
I (10886) DATA: Data segment parsed successfully
I (10896) DATA: Parsed seq = 0x0002, cmd_set=0x0000, cmd_id=0x0000
I (10896) LOGIC_COMMAND: Command executed successfully
I (10906) LOGIC_COMMAND: Version Query Response: ack_result=0, product_id=DJI-ACTION4, sdk_version=SDK-v1.1 DEBUG AC203-03.04.80.15
I (10916) LOGIC_STATUS: Subscribing to Camera Status with push_mode: 3, push_freq: 1
I (10926) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for camera_status_subscription_command_frame: 6
I (10936) DJI_PROTOCOL_DATA_DESCRIPTORS: Memory allocation succeeded for command frame, copying data...
Frame Length: 24
I (10946) LOGIC_COMMAND: Protocol frame created successfully, length: 24
ByteArray: [AA, 18, 00, 00, 00, 00, 00, 00, 00, 03, 10, 8F, 1D, 05, 03, 01, 00, 00, 00, 00, 25, E5, 5E, A3]
I (10966) LOGIC_COMMAND: Data frame sent without response.
I (10966) LOGIC_COMMAND: Command executed successfully
I (10966) LOGIC_KEY: Successfully subscribed to camera status.
I (11006) DATA: Notification received, attempting to parse...
I (11006) DATA: aa 17 00 20 00 00 00 00 00 03 70 bd 1d 05 00 00
I (11006) DATA: 00 00 00 66 46 32 67
I (11006) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11016) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x05
I (11016) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x05, CmdType: 0x20
Parser function is NULL for CmdSet: 0x1D, CmdID: 0x05
E (11026) DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x05
E (11036) DATA: Failed to parse data segment, error: 0
I (11046) DATA: Parsed seq = 0x0003, cmd_set=0x001D, cmd_id=0x0005
W (11046) DATA: No waiting entry found for seq=0x0003, creating a new entry by cmd_set=0x001D cmd_id=0x0005
I (11056) DATA: New entry allocated for seq=0x0003
I (11066) DATA: Notification received, attempting to parse...
I (11066) DATA: aa 38 00 01 00 a1 49 00 b4 7e 85 2a 1d 02 05 01
I (11076) DATA: 04 01 00 00 00 00 01 00 00 00 00 00 00 59 db 01
I (11076) DATA: 00 ab 8f 00 00 00 00 00 00 00 00 00 00 00 00 00
I (11086) DATA: 00 00 00 5c e9 7b eb 94
I (11086) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11096) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (11096) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (11106) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 38
I (11116) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x1D and CmdID 0x02
I (11126) DATA: Data segment parsed successfully
I (11126) DATA: Parsed seq = 0xB47E, cmd_set=0x001D, cmd_id=0x0002
W (11136) DATA: No waiting entry found for seq=0xB47E, creating a new entry by cmd_set=0x001D cmd_id=0x0002
I (11146) DATA: New entry allocated for seq=0xB47E
I (11146) LOGIC_STATUS: Camera mode updated to: 5
I (11146) LOGIC_STATUS: Camera status updated to: 1
I (11156) LOGIC_STATUS: Video resolution updated to: 4
I (11156) LOGIC_STATUS: FPS index updated to: 1
I (11166) LOGIC_STATUS: Camera state fully updated and marked as initialized.
I (11176) LOGIC_STATUS: Current camera status has changed:
I (11176) LOGIC_STATUS:   Mode: 普通拍照模式
I (11176) LOGIC_STATUS:   Status: 直播
I (11186) LOGIC_STATUS:   Resolution: 未知分辨率
I (11186) LOGIC_STATUS:   FPS: 24fps
I (11196) LOGIC_STATUS:   EIS: 关闭
I (11196) DATA: Notification received, attempting to parse...
I (11206) DATA: aa 38 00 01 00 a1 49 00 f5 7e b5 7a 1d 02 05 01
I (11206) DATA: 04 01 00 00 00 00 01 00 00 00 00 00 00 59 db 01
I (11216) DATA: 00 ab 8f 00 00 00 00 00 00 00 00 00 00 00 00 00
I (11216) DATA: 00 00 00 5c 0e 19 7d eb
I (11226) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11226) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (11236) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (11236) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 38
I (11246) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x1D and CmdID 0x02
I (11256) DATA: Data segment parsed successfully
I (11256) DATA: Parsed seq = 0xF57E, cmd_set=0x001D, cmd_id=0x0002
W (11266) DATA: No waiting entry found for seq=0xF57E, creating a new entry by cmd_set=0x001D cmd_id=0x0002

---

DJI Osmo Action 4:

Output from the monitor below:

--- Waiting for the device to reconnect
I (1417) LOGIC_LIGHT: LED state timer started successfully
I (1417) LOGIC_LIGHT: LED blink timer started successfully
I (1417) LOGIC_GPS: uart_rx_task_GPS are running

I (3417) BLE_INIT: Using main XTAL as clock source, chip ver: 1
I (3417) BLE_INIT: ble controller commit:[1304a9d]
I (3427) BLE_INIT: Bluetooth MAC: 9c:9e:6e:79:62:9a
I (3427) phy_init: phy_version 331,5b89037,Mar  3 2025,16:01:12
I (3507) phy: libbtbb version: ec2ecba, Mar  3 2025, 16:01:27
I (3527) BLE: GATTC register OK, app_id=0, gattc_if=3
I (3527) BLE: ble_init success!
I (3527) LOGIC_CONNECT: BLE init successfully
I (4527) LOGIC_KEY: Data layer not initialized, initializing now...
I (4527) DATA: Data layer initialized successfully
I (4527) LOGIC_KEY: Current state is 0, disconnecting Bluetooth...
I (4527) LOGIC_CONNECT: Disconnecting camera
I (4527) LOGIC_CONNECT: Camera disconnected successfully
I (4537) LOGIC_KEY: Attempting to connect Bluetooth...
I (4547) BLE: ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT
I (4547) BLE: Starting to scan...
I (4547) LOGIC_CONNECT: Waiting up to 5s for BLE to connect...
I (7547) BLE: scan stopped
I (7547) BLE: Connecting to device: e4:7a:2c:bc:ef:64
I (7547) BLE: Try to connect target device name = OsmoAction4-EF63
I (7547) BLE: Scan stopped after timeout
I (7647) BLE: Connected, conn_id=0
I (7647) BLE: Open success, MTU=23
I (7657) LOGIC_CONNECT: BLE connected successfully
I (7657) LOGIC_CONNECT: Waiting up to 30s for characteristic handles discovery...
I (9117) BLE: MTU=500
I (9117) BLE: Service found: start=8, end=19
I (9117) BLE: Service search complete, next get char by UUID
I (9117) BLE: Notify Char found, handle=0xd
I (9117) BLE: Write Char found, handle=0x10
I (9157) LOGIC_CONNECT: Required characteristic handles found
I (9157) BLE: Notify register success, handle=0xd
I (11157) LOGIC_CONNECT: BLE connect successfully
I (11157) LOGIC_KEY: Successfully connected Bluetooth.
I (11157) LOGIC_CONNECT: connect_logic_protocol_connect: Starting protocol connection
I (11157) LOGIC_CONNECT: Sending connection request to camera...
I (11167) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for connection_request_command_frame: 33
Frame Length: 51
I (11177) LOGIC_COMMAND: Protocol frame created successfully, length: 51
ByteArray: [AA, 33, 00, 02, 00, 00, 00, 00, 00, 01, 58, 7F, 00, 19, 03, 57, 34, 12, 06, 38, 34, 56, 78, 9A, BC, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 14, 1D, 00, 00, 00, 00, 7C, BE, 94, F2]
I (11197) LOGIC_COMMAND: Data frame sent, waiting for result...
I (11267) DATA: Notification received, attempting to parse...
I (11267) DATA: aa 1b 00 20 00 00 00 00 00 01 a4 7c 00 19 33 ff
I (11267) DATA: 00 00 00 00 00 00 00 5e 76 2f 9b
I (11267) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11277) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x19
I (11277) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x19, CmdType: 0x20
I (11287) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Connection Request data, received data length: 9
I (11297) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing response frame...
I (11307) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
I (11307) DATA: Data segment parsed successfully
I (11317) DATA: Parsed seq = 0x0001, cmd_set=0x0000, cmd_id=0x0019
I (11317) DATA: Notification received, attempting to parse...
I (11327) DATA: aa 33 00 02 00 00 00 00 01 00 98 2f 00 19 33 ff
I (11337) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (11337) DATA: 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 e5
I (11347) DATA: 18 a3 f5
I (11347) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11347) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x19
I (11357) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x19, CmdType: 0x02
I (11367) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Connection Request data, received data length: 33
I (11377) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing command frame...
I (11377) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
I (11387) DATA: Data segment parsed successfully
I (11387) DATA: Parsed seq = 0x0100, cmd_set=0x0000, cmd_id=0x0019
W (11397) DATA: No waiting entry found for seq=0x0100, creating a new entry by cmd_set=0x0000 cmd_id=0x0019
I (11407) DATA: New entry allocated for seq=0x0100
I (11407) LOGIC_COMMAND: Command executed successfully
I (11417) LOGIC_CONNECT: Connection request accepted, waiting for camera to send connection command...
I (11427) LOGIC_CONNECT: Camera approved the connection, sending response...
I (11427) LOGIC_CONNECT: Constructed connection response, sending...
I (11437) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for connection_request_response_frame: 9
Frame Length: 27
I (11447) LOGIC_COMMAND: Protocol frame created successfully, length: 27
ByteArray: [AA, 1B, 00, 20, 00, 00, 00, 00, 01, 00, 64, 2C, 00, 19, 03, 57, 34, 12, 00, 00, 00, 00, 00, 4A, BC, EC, DB]
I (11467) LOGIC_COMMAND: Data frame sent without response.
I (11467) LOGIC_COMMAND: Command executed successfully
I (11477) LOGIC_CONNECT: Connection successfully established with camera.
I (11477) LOGIC_KEY: Successfully connected to camera.
I (11487) LOGIC_COMMAND: command_logic_get_version: Querying device version
Creator function is NULL for CmdSet: 0x00, CmdID: 0x00
Frame Length: 18
I (11497) LOGIC_COMMAND: Protocol frame created successfully, length: 18
ByteArray: [AA, 12, 00, 02, 00, 00, 00, 00, 00, 02, 8C, 2F, 00, 00, 27, 85, 19, F1]
I (11517) LOGIC_COMMAND: Data frame sent, waiting for result...
I (11617) DATA: Notification received, attempting to parse...
I (11617) DATA: aa 72 00 20 00 00 00 00 00 02 26 2f 00 00 00 00
I (11617) DATA: 44 4a 49 2d 41 43 54 49 4f 4e 34 00 00 00 00 00
I (11627) DATA: 53 44 4b 2d 76 31 2e 31 20 44 45 42 55 47 20 41
I (11627) DATA: 43 32 30 33 2d 30 33 2e 30 34 2e 38 30 2e 31 35
I (11637) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (11637) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I (11647) DATA: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7d 60
I (11647) DATA: 0a 8d
I (11657) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11657) DJI_PROTOCOL_PARSER: CmdSet: 0x00, CmdID: 0x00
I (11667) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x00, CmdID: 0x00, CmdType: 0x20
I (11667) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Version Query Response, received data length: 96
I (11677) DJI_PROTOCOL_DATA_DESCRIPTORS: Version Query Response parsed successfully. ack_result: 0, product_id: DJI-ACTION4, sdk_version: SDK-v1.1 DEBUG AC203-03.04.80.15
I (11697) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x00
I (11707) DATA: Data segment parsed successfully
I (11707) DATA: Parsed seq = 0x0002, cmd_set=0x0000, cmd_id=0x0000
I (11717) LOGIC_COMMAND: Command executed successfully
I (11717) LOGIC_COMMAND: Version Query Response: ack_result=0, product_id=DJI-ACTION4, sdk_version=SDK-v1.1 DEBUG AC203-03.04.80.15
I (11727) LOGIC_STATUS: Subscribing to Camera Status with push_mode: 3, push_freq: 1
I (11737) DJI_PROTOCOL_DATA_DESCRIPTORS: Data length calculated for camera_status_subscription_command_frame: 6
I (11747) DJI_PROTOCOL_DATA_DESCRIPTORS: Memory allocation succeeded for command frame, copying data...
Frame Length: 24
I (11757) LOGIC_COMMAND: Protocol frame created successfully, length: 24
ByteArray: [AA, 18, 00, 00, 00, 00, 00, 00, 00, 03, 10, 8F, 1D, 05, 03, 01, 00, 00, 00, 00, 25, E5, 5E, A3]
I (11777) LOGIC_COMMAND: Data frame sent without response.
I (11777) LOGIC_COMMAND: Command executed successfully
I (11787) LOGIC_KEY: Successfully subscribed to camera status.
I (11917) DATA: Notification received, attempting to parse...
I (11917) DATA: aa 17 00 20 00 00 00 00 00 03 70 bd 1d 05 00 00
I (11917) DATA: 00 00 00 66 46 32 67
I (11917) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (11927) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x05
I (11927) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x05, CmdType: 0x20
Parser function is NULL for CmdSet: 0x1D, CmdID: 0x05
E (11947) DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x05
E (11947) DATA: Failed to parse data segment, error: 0
I (11957) DATA: Parsed seq = 0x0003, cmd_set=0x001D, cmd_id=0x0005
W (11957) DATA: No waiting entry found for seq=0x0003, creating a new entry by cmd_set=0x001D cmd_id=0x0005
I (11967) DATA: New entry allocated for seq=0x0003
I (11977) DATA: Notification received, attempting to parse...
I (11977) DATA: aa 31 00 01 00 00 00 00 56 3b cd ac 1d 02 01 01
I (11987) DATA: 10 03 01 00 00 00 00 00 00 00 00 00 00 d4 db 01
I (11987) DATA: 00 00 00 00 00 ea 27 00 00 00 00 00 00 b6 67 66
I (11997) DATA: 4b
I (11997) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (12007) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (12007) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (12017) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 31
E (12027) DJI_PROTOCOL_DATA_DESCRIPTORS: camera_status_push_data_parser: Data length too short for command frame. Expected: 38, Got: 31
E (12037) DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x02
E (12047) DATA: Failed to parse data segment, error: 0
I (12047) DATA: Parsed seq = 0x563B, cmd_set=0x001D, cmd_id=0x0002
W (12057) DATA: No waiting entry found for seq=0x563B, creating a new entry by cmd_set=0x001D cmd_id=0x0002
I (12067) DATA: New entry allocated for seq=0x563B
I (12367) DATA: Notification received, attempting to parse...
I (12367) DATA: aa 31 00 01 00 00 00 00 8d 3c d6 9e 1d 02 01 01
I (12367) DATA: 10 03 01 00 00 00 00 00 00 00 00 00 00 d4 db 01
I (12367) DATA: 00 00 00 00 00 ea 27 00 00 00 00 00 00 7d 44 1f
I (12377) DATA: 2e
I (12377) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (12387) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (12387) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (12397) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 31

[djizachy]

@marine-ecologist

Hello! We've addressed some issues in the latest version of the code. Please pull the most recent updates and make sure to reset the connection on the camera side — or manually update the Bluetooth remote's MAC address, as shown in the g_mac_addr array in connect_logic.c.

If you're still unable to establish a connection, please check the monitor logs to see if the target camera's MAC address is being discovered. If the issue persists, feel free to record a video of the entire process and upload the logs — this will help us reproduce and diagnose the problem more effectively.

[marine-ecologist]

Sorry @djizachy - forgot to update before running.

I pulled the recent updates and factory reset on the camera side:

• LOGIC_CONNECT: BLE init successfully ✅
• BLE: Found device: Osmo5 with RSSI: -55, MAC: 58:B8:58:93:61:47 ✅
• LOGIC_CONNECT: BLE connect successfully ✅

The code now remembers previous device

Osmo Action 5

monitoring the logs, the code still hangs on DJI_PROTOCOL_PARSER:

I (162211) DATA: Data segment parsed successfully
I (162211) DATA: Parsed seq = 0x5E71, cmd_set=0x001D, cmd_id=0x0002
W (162221) DATA: No waiting entry found for seq=0x5E71, creating a new entry by cmd_set=0x001D cmd_id=0x0002
I (162231) DATA: Entry for cmd_set=0x001D cmd_id=0x0002 already exists, it will be overwritten
I (162241) DATA: New entry allocated for seq=0x5E71
I (162721) DATA: Notification received, attempting to parse...
I (162721) DATA: aa 38 00 01 00 d6 1b 00 65 60 bd c1 1d 02 05 01
I (162721) DATA: 03 01 00 00 00 00 01 00 00 00 00 00 00 54 db 01
I (162721) DATA: 00 78 4c 01 00 00 00 00 00 00 00 00 00 00 00 00
I (162731) DATA: 00 00 00 4f 29 90 6d f7
I (162731) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (162741) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (162741) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (162751) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 38
I (162761) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x1D and CmdID 0x02
I (162771) DATA: Data segment parsed successfully
I (162771) DATA: Parsed seq = 0x6065, cmd_set=0x001D, cmd_id=0x0002
W (162781) DATA: No waiting entry found for seq=0x6065, creating a new entry by cmd_set=0x001D cmd_id=0x0002
I (162791) DATA: Entry for cmd_set=0x001D cmd_id=0x0002 already exists, it will be overwritten
I (162801) DATA: New entry allocated for seq=0x6065
I (163261) DATA: Notification received, attempting to parse...
I (163261) DATA: aa 38 00 01 00 d6 1b 00 59 62 2d 00 1d 02 05 01
I (163261) DATA: 03 01 00 00 00 00 01 00 00 00 00 00 00 54 db 01
I (163261) DATA: 00 78 4c 01 00 00 00 00 00 00 00 00 00 00 00 00
I (163271) DATA: 00 00 00 4f ff 54 a7 b9
I (163271) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (163281) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (163281) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (163291) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 38
I (163301) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x1D and CmdID 0x02
I (163311) DATA: Data segment parsed successfully
I (163311) DATA: Parsed seq = 0x6259, cmd_set=0x001D, cmd_id=0x0002
W (163321) DATA: No waiting entry found for seq=0x6259, creating a new entry by cmd_set=0x001D cmd_id=0x0002
I (163331) DATA: Entry for cmd_set=0x001D cmd_id=0x0002 already exists, it will be overwritten
I (163341) DATA: New entry allocated for seq=0x6259
I (163801) DATA: Notification received, attempting to parse...
I (163801) DATA: aa 38 00 01 00 d6 1b 00 4d 64 a2 02 1d 02 05 01
I (163801) DATA: 03 01 00 00 00 00 01 00 00 00 00 00 00 54 db 01
I (163801) DATA: 00 78 4c 01 00 00 00 00 00 00 00 00 00 00 00 00
I (163811) DATA: 00 00 00 4f 03 c3 36 dd
I (163811) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (163821) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (163821) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (163831) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 38
I (163841) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x1D and CmdID 0x02
I (163851) DATA: Data segment parsed successfully
I (163851) DATA: Parsed seq = 0x644D, cmd_set=0x001D, cmd_id=0x0002
W (163861) DATA: No waiting entry found for seq=0x644D, creating a new entry by cmd_set=0x001D cmd_id=0x0002

i.e. Camera Status Push (1D02) CmdSet = 0x1D, CmdID = 0x02

Osmo Action 4

Connecting the osmo gets stuck in a "Updating Bluetooth remote controller takes approximately 2 min" on the screen after accepting a numeric password, loops with:

I (107186) DATA: Parsed seq = 0x579D, cmd_set=0x001D, cmd_id=0x0002
W (107196) DATA: No waiting entry found for seq=0x579D, creating a new entry by cmd_set=0x001D cmd_id=0x0002
I (107206) DATA: Entry for cmd_set=0x001D cmd_id=0x0002 already exists, it will be overwritten
I (107216) DATA: New entry allocated for seq=0x579D
I (107776) DATA: Notification received, attempting to parse...
I (107776) DATA: aa 31 00 01 00 00 00 00 91 59 1e 75 1d 02 01 01
I (107776) DATA: 0a 03 01 00 00 00 00 00 00 00 00 00 00 d4 db 01
I (107786) DATA: 00 00 00 00 00 ce 63 00 00 00 00 00 00 ea 93 8d
I (107786) DATA: df
I (107786) DJI_PROTOCOL_PARSER: Frame parsed successfully
I (107796) DJI_PROTOCOL_PARSER: CmdSet: 0x1D, CmdID: 0x02
I (107796) DJI_PROTOCOL_DATA_PROCESSOR: Parsing CmdSet: 0x1D, CmdID: 0x02, CmdType: 0x01
I (107806) DJI_PROTOCOL_DATA_DESCRIPTORS: Parsing Camera Status Push data, received data length: 31
E (107816) DJI_PROTOCOL_DATA_DESCRIPTORS: camera_status_push_data_parser: Data length too short for command frame. Expected: 38, Got: 31
E (107826) DJI_PROTOCOL_PARSER: Failed to parse data for CmdSet 0x1D and CmdID 0x02
E (107836) DATA: Failed to parse data segment, error: 0

[djizachy]

@marine-ecologist

What is the firmware version of your camera? You may need to update to a newer version to resolve this issue.

[marine-ecologist]

I factory reset both cameras, updated firmware via Mimo app as follows:

Osmo Action 5 Pro:

• Firmware Version: 01.04.810
• Camera Firmware Version: 10.00.12.38

Osmo Action 4 Pro

• Firmware Version: 01.06.04.10
• Camera Firmware Version: 10.00.37.91

The issue persists as previously, checking the monitor logs it does the same loop - with the occasional error:

I (18761) DJI_PROTOCOL_PARSER: Data parsed successfully for CmdSet 0x00 and CmdID 0x19
E (18771) task_wdt: Task watchdog got triggered. The following tasks/users did not reset the watchdog in time:
E (18771) task_wdt:  - IDLE (CPU 0)
E (18771) task_wdt: Tasks currently running:
E (18771) task_wdt: CPU 0: BTC_TASK
E (18771) task_wdt: Print CPU 0 (current core) registers
Core  0 register dump:
MEPC    : 0x40801cca  RA      : 0x40801e94  SP      : 0x40828590  GP      : 0x40816ec4  
--- 0x40801cca: lock_acquire_generic at /Users/rof011/esp/esp-idf/components/newlib/src/locks.c:126
--- 0x40801e94: _lock_acquire_recursive at /Users/rof011/esp/esp-idf/components/newlib/src/locks.c:175

TP      : 0x40828cd0  T0      : 0x40028140  T1      : 0x10000000  T2      : 0xffffffff  
--- 0x40028140: __retarget_lock_acquire_recursive in ROM

S0/FP   : 0x00000001  S1      : 0x4081f51c  A0      : 0x408169c8  A1      : 0xffffffff  
A2      : 0x00000004  A3      : 0x00000003  A4      : 0x00000000  A5      : 0x4081deb0  
A6      : 0x4200d202  A7      : 0x0000000a  S2      : 0x00000031  S3      : 0x00000000  
--- 0x4200d202: usb_serial_jtag_write at /Users/rof011/esp/esp-idf/components/esp_driver_usb_serial_jtag/src/usb_serial_jtag_vfs.c:184

S4      : 0x4081f51c  S5      : 0x408287a0  S6      : 0x420bf9ea  S7      : 0x00000000  
S8      : 0x00000023  S9      : 0x00000000  S10     : 0x408287b4  S11     : 0x00000004  
T3      : 0x00000000  T4      : 0x38061234  T5      : 0x57031900  T6      : 0x2f980001  
MSTATUS : 0x00001889  MTVEC   : 0x40800001  MCAUSE  : 0xdeadc0de  MTVAL   : 0xdeadc0de  
--- 0x40800001: _vector_table at /Users/rof011/esp/esp-idf/components/riscv/vectors_intc.S:54

MHARTID : 0x00000000  
Please enable CONFIG_ESP_SYSTEM_USE_FRAME_POINTER option to have a full backtrace.

@djizachy any suggested next steps? It'd be great to get this up and running

[marine-ecologist]

@djizachy do you have any insights as to where this is going wrong?