I fix drones. I faced the ( device not detected ) issue many times. If u show the hidden files, the bin log will state :
[00441851]Firmware upgrading[5]...
[00444803][19 00] Firmware upgrade start...
[00486387]Done.
[00486466]Version checking[6]...
[00486563][03 05][00] v34.2.0.9 -> v34.2.0.8
[00486681][03 06][00] v2.2.6.8 -> v2.1.6.18
[00486759][04 00][00] v1.38.0.0 -> v1.36.0.0
[00486851][09 00][00] v1.7.0.3 -> v1.7.0.3
[00487001][11 00][00] v1.6.0.0 -> v1.6.0.0
[00487131][12 00][00] v1.8.0.0 -> v1.8.0.0
[00487258][08 00][00] device not detected.
[00487366][12 02][00] v1.8.0.0 -> v1.8.0.0
[00487492][12 03][00] v1.8.0.0 -> v1.8.0.0
[00520097][15 00][00] device not detected.
[00520208][17 00][00] v1.1.1.6 -> v1.1.1.2
[00520368][17 01][05] v1.0.2.4 -> v1.0.2.4
[00520473][19 00][00] v0.0.0.0 -> v1.0.8.59 upgrade failed.
This log means u hav 2 ways only to solve it. One is RMA back to dji. The second way which needs luck is changing the MGCB. main gimbal circuit board. U cant buy it alone coz its a part of the gimbal. U can try ur luck with someone with a crashed drone and i my self did find 3 working boards from ppl who crashed and replaced their gimbals.
....................................
The second no signal issue. The hidden log indicates the only 15 DEVICE NOT DETECTED. With some error. Like this.
[00441851]Firmware upgrading[5]...
[00444803][19 00] Firmware upgrade start...
[00456309][19 00] Firmware upgrade finish failed (step = 4, err = 0xaa, idx = 0, los = 1, ng = 0, usb = 1).
[00486387]Done.
[00486466]Version checking[6]...
[00486563][03 05][00] v34.2.0.9 -> v34.2.0.8
[00486681][03 06][00] v2.2.6.8 -> v2.1.6.18
[00486759][04 00][00] v1.38.0.0 -> v1.36.0.0
[00486851][09 00][00] v1.7.0.3 -> v1.7.0.3
[00487001][11 00][00] v1.6.0.0 -> v1.6.0.0
[00487131][12 00][00] v1.8.0.0 -> v1.8.0.0
[00487258][12 01][00] v1.8.0.0 -> v1.8.0.0
[00487366][12 02][00] v1.8.0.0 -> v1.8.0.0
[00487492][12 03][00] v1.8.0.0 -> v1.8.0.0
[00520097][15 00][00] device not detected.
[00520208][17 00][00] v1.1.1.6 -> v1.1.1.2
[00520368][17 01][05] v1.0.2.4 -> v1.0.2.4
[00520473][19 00][00] v0.0.0.0 -> v1.0.8.59 need upgrade.
[00520546][01 00][00] v1.14.3090 -> v1.7.2735
[00520622][01 01][00] v1.14.3090 -> v1.7.2735
[00520698]Packet upgrade failed at firmware upgrade.
This problem is easy to solve and no need for RMA. Usualy it happens after a crash. It means the u hav to change the cable that connect the gimbal with the transmitter or u should change the transmitter its self. The transmitter its self is the OFDM board exist above the IMU sensors board. Its sold alone at DJI with aprice 69$ i guess.
I did fix more than 7 drones having these issues.
AND DONT FORGET to upgrade firmware after changing or replacing any part of these.
Wish that helps u.
GOODLUCK ALL.
[00441851]Firmware upgrading[5]...
[00444803][19 00] Firmware upgrade start...
[00486387]Done.
[00486466]Version checking[6]...
[00486563][03 05][00] v34.2.0.9 -> v34.2.0.8
[00486681][03 06][00] v2.2.6.8 -> v2.1.6.18
[00486759][04 00][00] v1.38.0.0 -> v1.36.0.0
[00486851][09 00][00] v1.7.0.3 -> v1.7.0.3
[00487001][11 00][00] v1.6.0.0 -> v1.6.0.0
[00487131][12 00][00] v1.8.0.0 -> v1.8.0.0
[00487258][08 00][00] device not detected.
[00487366][12 02][00] v1.8.0.0 -> v1.8.0.0
[00487492][12 03][00] v1.8.0.0 -> v1.8.0.0
[00520097][15 00][00] device not detected.
[00520208][17 00][00] v1.1.1.6 -> v1.1.1.2
[00520368][17 01][05] v1.0.2.4 -> v1.0.2.4
[00520473][19 00][00] v0.0.0.0 -> v1.0.8.59 upgrade failed.
This log means u hav 2 ways only to solve it. One is RMA back to dji. The second way which needs luck is changing the MGCB. main gimbal circuit board. U cant buy it alone coz its a part of the gimbal. U can try ur luck with someone with a crashed drone and i my self did find 3 working boards from ppl who crashed and replaced their gimbals.
....................................
The second no signal issue. The hidden log indicates the only 15 DEVICE NOT DETECTED. With some error. Like this.
[00441851]Firmware upgrading[5]...
[00444803][19 00] Firmware upgrade start...
[00456309][19 00] Firmware upgrade finish failed (step = 4, err = 0xaa, idx = 0, los = 1, ng = 0, usb = 1).
[00486387]Done.
[00486466]Version checking[6]...
[00486563][03 05][00] v34.2.0.9 -> v34.2.0.8
[00486681][03 06][00] v2.2.6.8 -> v2.1.6.18
[00486759][04 00][00] v1.38.0.0 -> v1.36.0.0
[00486851][09 00][00] v1.7.0.3 -> v1.7.0.3
[00487001][11 00][00] v1.6.0.0 -> v1.6.0.0
[00487131][12 00][00] v1.8.0.0 -> v1.8.0.0
[00487258][12 01][00] v1.8.0.0 -> v1.8.0.0
[00487366][12 02][00] v1.8.0.0 -> v1.8.0.0
[00487492][12 03][00] v1.8.0.0 -> v1.8.0.0
[00520097][15 00][00] device not detected.
[00520208][17 00][00] v1.1.1.6 -> v1.1.1.2
[00520368][17 01][05] v1.0.2.4 -> v1.0.2.4
[00520473][19 00][00] v0.0.0.0 -> v1.0.8.59 need upgrade.
[00520546][01 00][00] v1.14.3090 -> v1.7.2735
[00520622][01 01][00] v1.14.3090 -> v1.7.2735
[00520698]Packet upgrade failed at firmware upgrade.
This problem is easy to solve and no need for RMA. Usualy it happens after a crash. It means the u hav to change the cable that connect the gimbal with the transmitter or u should change the transmitter its self. The transmitter its self is the OFDM board exist above the IMU sensors board. Its sold alone at DJI with aprice 69$ i guess.
I did fix more than 7 drones having these issues.
AND DONT FORGET to upgrade firmware after changing or replacing any part of these.
Wish that helps u.
GOODLUCK ALL.
Last edited: