DJI Mini 2 ESC Board Replacement Guide (Fix Charging Issues, Motor Errors & App Warnings), by We Repair on YouTube. 17 min 20 s.
- Video length
- 17 min 20 s
- Time to do it
- 2 hours
- Difficulty
- Takes practice
- Steps
- 10
What you need
Steps
Power off the drone and remove the battery before opening anything. This prevents short circuits on the mainboard while you work.
Remove the screws holding the casing with the #00 and #000 bits. Keep each screw in a labelled tray or taped to paper so you know where it goes back.
Slide a plastic spudger into the fuselage seams and unclip the shell slowly. Avoid metal tools that can nick the plastic or internal wires.
Lift off the top shell and unplug the ribbon cables and connectors linking the ESC board to the mainboard. Use tweezers for the small latches.
Note the position of the three motor phase wires on each motor. Take a photo before desoldering so you can match them on the new board.
Heat each motor wire joint with the soldering iron and lift the wire free. Remove the screws holding the old ESC board and take it out.
Fit the new ESC board and screw it down. Solder the three motor phase wires to the same pads in the same order you recorded.
Clean any flux or grime around the joints with isopropanol on a cotton swab. Let it dry fully before reconnecting cables.
Reconnect the ribbon cables and connectors, then clip the shell back on and refit all screws in their original spots.
Install the battery and open DJI Fly. Calibrate the IMU, compass and gimbal, then do a short test hover in an open area.
Tips and common mistakes
Solder in a ventilated space and let the iron cool before putting it away, since flux fumes and hot tips are the main hazards here.
Screws differ slightly in length, so mixing them up can strip the plastic threads in the frame.
A weak or bridged solder joint on a motor wire can cause a motor error or a crash, so tug each wire gently after soldering.
If error codes remain after reassembly, recheck the cable connectors before assuming the new board is faulty.
Questions
Do I need to desolder anything to replace the ESC board?
Yes. The three motor phase wires on each motor are soldered to the board, so you need a soldering iron to free them and attach them to the new board.
Why does my DJI Mini 2 show motor errors and charging problems?
A failing ESC board can cause erratic motor behaviour, charging faults and error codes in DJI Fly. Replacing the board is one fix, but check cables and the battery first.
What should I do after fitting the new ESC board?
Calibrate the IMU, compass and gimbal in DJI Fly, then test with a short hover in a safe open area before any longer flight.
This guide was drafted from the video's details and general task knowledge. It has not been checked against the full video. Check the video and relevant product instructions before following a procedure. Report a correction.
