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Mavic Pro Gimbal & Camera Dead

Wanbli

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I bought a Mavic Pro off eBay that said the gimbal overload error was the issue, assuming I could repair it. Received it, fired it up and the gimbal does nothing on startup & the display from the camera is black. There is NO indication in the app that the gimbal/camera even exists and no related errors either. Even the gimbal icon in the main page is gone! I removed the gimbal from the drone for inspection. I completely tore down the gimbal and removed the cable covers to inspect the cables, they all look good, no breaks in the camera cable & no visible tears in the flat gimbal cable and all gimbal & camera connectors are properly seated (they look factory, black glue & all). The gimbal moves freely in all directions. The circuit board power connector (white wire) appears to have been re-soldered and covered with something, not silicone. The repair looks good. I tested the plug end with a meter and got .014vdc. Not sure what it's supposed to be reading there. The front sensors calibrated via Assistant 2, so I assume the circuit board is ok or they wouldn't work? So, this one has me stumped, any help or guidance would be appreciated.
 

Bill combs

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I bought a Mavic Pro off eBay that said the gimbal overload error was the issue, assuming I could repair it. Received it, fired it up and the gimbal does nothing on startup & the display from the camera is black. There is NO indication in the app that the gimbal/camera even exists and no related errors either. Even the gimbal icon in the main page is gone! I removed the gimbal from the drone for inspection. I completely tore down the gimbal and removed the cable covers to inspect the cables, they all look good, no breaks in the camera cable & no visible tears in the flat gimbal cable and all gimbal & camera connectors are properly seated (they look factory, black glue & all). The gimbal moves freely in all directions. The circuit board power connector (white wire) appears to have been re-soldered and covered with something, not silicone. The repair looks good. I tested the plug end with a meter and got .014vdc. Not sure what it's supposed to be reading there. The front sensors calibrated via Assistant 2, so I assume the circuit board is ok or they wouldn't work? So, this one has me stumped, any help or guidance would be appreciated.
i’ve been inside the mp and the mpp dealing with camera issues after purchasing them from others who crashed them and have had the same issue on the mp,i first replaced the camera and its gimbal and although it improved still had issues so i replaced the camera board in the nose of the mp and voila perfectio,you can purchase them online fairly cheap i think i spent less than $300 if memory serves me.
 

Wanbli

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i’ve been inside the mp and the mpp dealing with camera issues after purchasing them from others who crashed them and have had the same issue on the mp,i first replaced the camera and its gimbal and although it improved still had issues so i replaced the camera board in the nose of the mp and voila perfectio,you can purchase them online fairly cheap i think i spent less than $300 if memory serves me.
I actually thought of the board and had one in a parts drone I have in a box, no change. :( This one really has me baffled. I ordered a rebuilt gimbal with new flat & video cables hoping that will fix it, won't know until Monday. ;)
 

Wanbli

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Update:
I have 2 M1P's that I'm repairing. The new gimbal w/cables fixed one of them, the other, not so much.
I checked the board on top of the gimbal and found that the lower right cable socket had one broken connector in the top right side (see 1st picture, look closely). I knew I had another spare from a parts drone, but it also had 2 broken connectors on the same place (see 2nd picture). So I checked the cables that plug into this port and they appear good. I will now look for this every time I have this symptom.
I took the complete working gimbal/camera assembly from the other working M1P and put it in this drone, just as before, the gimbal didn't move, no video and no gimbal icon shows in the DJI Go 4 app. The drone fly's perfectly, just no recognition of the gimbal at all. I have no errors in the app (probably because it doesn't see the gimbal at all). I also replaced the bottom board that the gimbal cables plug into, but there was no change. That only leaves the ESC board, but I don't see ant ESC errors/warnings in the app and the drone flies fine with no errors. It just doesn't see the gimbal at all.
As an FYI, I took the gimbal that isn't seen in this M1P and installed it in the other working M1P and it works fine, except the camera won't focus (ordered a replacement camera).
So anyone who has seen this before and fixed it, please let me know what it took to fix it. Any help would be appreciated.
 

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Wanbli

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SOLVED!!
Removed the board where the battery plugs in, there's a very thin, flat copper inlay that powers the gimbal. It was torn. Soldered the 2 pieces together wiith a thin solder joint, covered with silicone, allowed to dry, replaced the board, Wallah! Working gimbal!
 

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