Lenovo T470P NM-B071P had no power. PQ2 and PQ11 were shorted, repaced them and laptop turned ON. Connected the battery and the motherboard turned off immediately and it won't charge, checked the voltages and found out that there is 20v on the positive battery terminal.
Replaced battery charger IC PU101 and the two switching mosfets PQ101 and PQ102 and still same problem. Now I can't figure out how 20v is ending up on the battery terminals.
Replaced battery charger IC PU101 and the two switching mosfets PQ101 and PQ102 and still same problem. Now I can't figure out how 20v is ending up on the battery terminals.
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