820-00239. Not working with battery

Soji

Member
The board came in dead
Detected a partial shot on ppbus_3gh
Found that u8050 is getting hot, I replaced it.
PPBUS_G3H-present
It’s drawing 20v and it’s booting well without battery
After connecting j6950 flex battery flex , the system will start to draw 5v and the TypeC c ammeter will be restarting every 2 sec. Until the flex is detached. It will normalize.
and I have tried another battery , same thing.
 

2informaticos

Administrator
Staff member
Tried known good battery for sure?
Be aware, "new" is not equal with "known good".

I recommend you to get the battery port tester in the repair shop.
It shows you if there is a communication problem on the battery bus.

Also NLBA helps you to fully diagnose the battery.
You can also reset and repair the batteries with it.
 
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