Stormcore 100D DRV fault. DRV83235_FAULTS : | FAULT | CPU V | Has anyone seen this fault before?

[NoahPZ]

@jack.luis is working on repairing my 100D for me. Currently, there is a fault that leads to the 5v and 3.3v rails. Perhaps it was my fault as I ran a small tail light off the 5v.

Heres the details:

@jack.luis

Ive been trying to update the firmware to try again and finally got it to update and now instead of failing detection its just giving DRV faults.

next step is to replace both DRV chips

I researched that fault code and it led to to probe the 3.3v and 5v rails. They’re both at the correct voltage.

To probe the DRV pins I’ll have it bring this back to work and use more precise tools

Anyone have any ideas?

[jack.luis]

Heyo, just one more data point I forgot to add to our DMs

One of the DRVs is way hotter than the other but both are giving the CPU V error

I’m gonna replace the hotter one first

[NoahPZ]

Yeah I noticed the same. The one on the left side correct?

[linsus]

Stormcores and unity kinda sucks to repair.
Just swap out both IC’s and see if it helps. fault tracing these are a rabbit hole