Howdy Partners,
Came here to try and fix my Legion 5 Pro. I'm quickly learning the 2 EE classes I've taken as a mechanical engineering student are wildly inadequate. Gotta love a forum with this much knowledge!...

Sorry to jump in on this one. I'm working on the same laptop that seems to be going through the same thing, no signs of life. Here's what I have so far. If anyone has any ideas or input I would be super greatful! I'm thinking maybe get a new 24780s?

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Resistances

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DC in MOSFETS

PQ5401, gate source drain no shorts

PQ5402 gate source drain no shorts

Main Power Rail to Ground 3 Mega Ohms


Current sensing...