Since the Raspberry Pi 3B+ release, the Pi boards we all know and love gained one more weakpoint â the PMIC chip, responsible for generating all the power rails a Pi needs. Specifically, the new PMIC was way more vulnerable to shorting 5V and 3.3V power rails together â something thatâs trivial to do on a Raspberry Pi, and would leave you with a bricked board. Just replacing the PMIC chip, the MxL
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