Error code 10 + burnt SWDI0 & SWCLK

23 August 2026
2
0
E-Scooter
Ninebot G30D2
Hello everybody, I am in deep trouble and need help either buying a replacement AT32 controller or fixing the pads.

Earlier today I flashed the ESC with my ST-link 2 while only the red light was flashing statically, while I couldn't seem to get the green light working and blinking (which I still do not know if it is important or not because I failed to find a good guide that goes through everything). So after flashing and trying to connect to Bluetooth, it failed and started showing error code 10. After that I tried to use a UART adapter, but I believe it failed because one or more of my Dupont jumper wires (2.5 mm) failed to fully connect to the small pins.

After the UART failed, I tried to go back to soldering the Dupont wires to the controller, and I think I overdid it since the pad is black now and I believe one of the tracks went up as well, so I am kind of screwed.

Here are the guides I tried to follow.
 

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My controller also seems to be blank considering when I tried to connect it back to the scooter to test it, it was static showing red. Should I proceed with a 7-pin JST PAP-07V-S connector (2.00mm pitch) if UART usb is still a choice maybe? But at the same time I believe the controller is blank.