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Troubleshooting • raspberrypi 3b+ not working with original power supply, but works with usb from pc

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Hi guys
I got a RPI 3B+ back from a customer that is not able to power on using original power supply. I've tried multiple (they work on other pi's as expected!). However the RED light doesnt even turn ON on this specific board.

I've tried using a universion usb powersupply + usb cable and that works well. I've also tried directly from my pc to the RPI via usb cable and that works too.

So the question is: Is there anything that forces the RPI to "protect" itself from power?

The original Power supplies are all STONTRONICS
output: +5.1V === 2.5A

Is this just yet another defected board?

Statistics: Posted by welrachid — Tue Mar 25, 2025 8:40 am



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