# Repairing M0138

Source: https://forum.modalai.com/topic/5500/repairing-m0138
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Posted: 2026-10-03 05:51:04 UTC by sjt277
Replies: 0 · Views: 24

## sjt277 · 2026-10-03 05:51:04 UTC

**Hardware:** (board / drone / SKU, serial # if you have it)
M0138
**Software version:** (paste the output of `voxl-version`)
Python codes
**Configuration / services:** (paste the output of `voxl-inspect-services`)
Doesn't respond to USB uart
**What happened:**
I was connecting the M0138 to a 24V power supply for bench test. It turned on the led in the bootup sequence but afterwards stopped completely responding. I tried plugging it in and out but wouldn't start up again. Then I tried touching the components and the Vreg Inductor seems to be getting very hot, all other components seem fine. Is there a way to repair it? How would I do that? The purchase was made few months back and I don't want the ESC to scrap and want to make some use out of it.
Thanks

**Logs / pictures:** (attach files; PX4 logs -> https://logs.px4.io)