Hi All! I've just finished a build & one of the motors doesn't spin. It's showing 100% error in betaflight, and the ESC 2 doesn't show up in BL_Heli. I've tried putting the motor on a different board and it spun up fine, and I've put another motor on the board and it doesn't work either. That said, I've followed the ESC troubleshooting steps reccomended on Oscar Liang and can't actually find any shorts or anything. Is there anything else I might be missing before I undo all my soldering and just order a replacement board?

there is no image attached, please share it with igmur as example.

waht fc and esc is it? did you check the esc and fc plug for a bended pin? did you try another harness between fc and esc? you cant try to unplug the signal cable of the esc/fc cable and replug a working esc with the motor signal of the nonworking one the check the fc signal.

Yeah, sorry. I was trying to edit to add the pictures but they're too big... See the link below.


https://imgur.com/a/rKXGAzM

It's a Flywoo Goku F745 AIO.

its an all in one board

i would suggest to flash the firmware freshly and check if it can solve it. make a diff or a dumpfile to enter the settings again befor flashing
Betaflight Firmware target: FLYWOOF745


disable bidirectional dshot might sort that out as source

One time I had a similar problem and it was that I had the wrong dshot profile selected.
Hope it's something as easy as that

(17-Sep-2023, 04:09 PM)hugnosed_bat Wrote: its an all in one board

i would suggest to flash the firmware freshly and check if it can solve it. make a diff or a dumpfile to enter the settings again befor flashing
Betaflight Firmware target: FLYWOOF745


disable bidirectional dshot might sort that out as source

No luck. Re-flashing Bl_Heli just re-flashes the 3 working ESC's. It just skips over #2 - no option to even do anything.

Disabling bidirectional dShot didn't help either, I also tried selecting all the other motor protocols without luck.

Thanks for the help, but looking more and more like a dead board!

i spoke about betaflight fc firmware.

the fc does the passtrough between esc and pc, if the passtrough doesnt work you cant comunicate with blheli configurator - flash the fc could solve that maybe, a communication issue

(17-Sep-2023, 05:23 PM)hugnosed_bat Wrote: i spoke about betaflight fc firmware.

the fc does the passtrough between esc and pc, if the passtrough doesnt work you cant comunicate with blheli configurator - flash the fc could solve that maybe, a communication issue

Aaah, with you. I have flashed the firmware since receiving the board, but I'll run it again.

No change after re-flashing BF unfortunately

(17-Sep-2023, 06:37 PM)VintageFPV Wrote: No change after re-flashing BF unfortunately

Sounds like a dead board then.

Are you sure you have the correct firmware flashed? There are two similarly named firmwares `FLYWOOF745` and `FLYWOOF745AIO` that only differ in regards to motor pin assignments. Whichever one you have flashed now, try flashing the other one and see if it works.