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Troubleshooting • Re: Raspberry pi 4B not booting

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That 4.49V reading on the 3.3V pin is definitely a major red flag. If that rail is significantly over-voltage, it usually points to a failed PMIC (Power Management IC). Since you’ve already tried the EEPROM recovery with no luck, it’s likely a hardware failure. Have you noticed any specific components getting unusually hot when it's plugged in?

Statistics: Posted by CierraGen — Mon Feb 02, 2026 8:25 am



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