pi 4 – Powering Pi 4 with dead power circuit
One of my many Raspberry Pi 4’s in one of my clusters recently broke down. After some troubleshooting I was surprised to find out, that the power-circuit on the board is actually toast.
I have no idea how this happened but now I am not able to power the board via the USB-C plug any longer.
From the schematics I could see that these pins lead directly to the 5V0 and GND rails “behind” the VRMs and caps in the power circuit of the board.
Since I don’t have another stabilised power supply I can spare and I need the Pi up and running asap, I’m asking whether I can power the Pi via the GPIO +5V and GND using the official USB-C adapter (by just soldering a USB-C jack onto them) or if that would lead to damage or even catastrophic failure over time.
Soldering extra caps onto the “auxillary” USB-C jack is no problem, if that would be neccessary. I just wanted to ask some people with experience and maybe even better ideas, before I try something untested and fry an otherwise good Pi 4.
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