That's what I feared when we switched the RJ45 from a through-hole to an SMD part. The reason for the last minute change was that the metal shielding of the Raspberry Pi 5's USB port potentially touches the HAT's circuit board at this location.
As several points failed, I'm not sure whether bad solder joints can be blamed. I wonder if vibration could cause this failure mode.
If the pads are still intact, touching them up with a soldering iron and some fresh solder should fix it (for now).
As several points failed, I'm not sure whether bad solder joints can be blamed. I wonder if vibration could cause this failure mode.
If the pads are still intact, touching them up with a soldering iron and some fresh solder should fix it (for now).