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DJI Mini 4 Pro features 4K/60fps HDR, Slow Motion 4K/100fps and Night Shots Video. Ultra-responsive control and smooth 1080p/60fps FHD live feeds from distances of up to 20 km. Weighing less than 249 g. Comes with a DJI RC-N2 controller.

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Head scratcher with this lil guy

I bought a crashed drone online to refurbish and sell as I do quite often. It needed a front left arm replacement “no problem”

It only had a cannot take off error due to the arm.

I professionally replaced the front left arm. when soldering I made sure to do it very quickly to not heat up the ESC board.

I put it back together gently.

When booting it back up, I was encountered with multiple gimbal errors

  • Gimbal stuck. Make sure gimbal cover is removed and
  • manually check whether gimbal can rotate freely (Code:⏎
    1d010002)⏎
    Gimbal error. Restart aircraft (Code: 1dOc0003;⏎
    1dOc0004; 1d0e0001

Nothing was done to the gimbal during the repair, but I went through the gimbal took it apart tested the PTZ coax cable, it tested fine. Checked the gimbal motors. Even doing a DJI factory test by wiggling parts of the wire and physically inspected lines, all good

When booting the drone back up for the first 5 to 10 seconds the gimbal seems fine. Then suddenly goes limp and is unresponsive. I rebooted and tried again and then it seemed fine. Then I rebooted again and it went back to being limp after a few seconds.

I did a IMU compass Calibration. Updated the firmware refreshed the firmware. Factory reset the drone. When trying to calibrate using DJI assistant, it stops at 10%.  Physical inspection shows everything is fine the buckles, the connectors, the boards don’t seem to have any burn marks. Check for resistance on the gimbal motors. Everything seems in order.

What can I do next?

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We all know that DJI has locked us out of them so we can’t use Python to do a calibration. So there’s gotta be a fix besides sending them to them.

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It seems like the gimbal was broken due to the force of the impact that broke its arm as well. It would work in the first few seconds because it was testing whether the gimbal works fine by turning it to its extremes. If it can't do that then it would stop and leave a gimbal error. I once had the same problem as you when I was trying to get some videos in a forest. Turns out it was a stupid idea to fly a drone in a place where trees are everywhere. Anyway, my gimbal also worked just fine, I tested all the motors and nothing is stuck. However, when I booted the drone, it showed the same messages as you and refuses to take off. Calibration would start and stop halfway through.

Unfortunately, there's nothing you can do about it except taking it toDJI. DJI has indeed looked us all out of independent repairs with their crappy software that's even more disgusting than Apple's parts paring, and only their official calibration software can calibrate the drone.

However, you might want to check for debris that somehow got into the motors which stops it from turning properly, and also get some new mounting brackets and swap the old ones out it could be a deformed mounting bracket that had somehow caused the problem.
This:

Block Image
Block Image


That might solve the problem.
Good luck with your repair!

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without pushing on the buckle connector

when lifting it upright a little bit and pushing on the buckle connector the camera does this, but not every time. I’ve tried to do an auto calibration when it’s seems to be working normally, before it goes limp, but it won’t do it.

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That's weird. When DJI drones start up the camera usually turns around to see whether it's stuck. Mine does that. Perhaps it is stuck or encountering resistance that stops it from turning. Is it easy to turn the gimbal with your hands? The gimbal on my Mini 4 Pro is really easy to turn and requires little force. I couldn't see the second video, though. Maybe you can resend it again and I might have a clue of what's going on.

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Gregg Brotman crwdns2934231:0crwdne2934231:0
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