820-4924-a Not recognizing battery

[iFix]

Hi guys.

I have this A1502 not recognizing batteries. Tried with original and 2 others new same thing.
PPBUS_G3H - 16.2v On charger only and same with plugged battery and also i replaced U7100 and D7050.

SMC issue?

 

[2informaticos]

Change Q7130, it is shorted.
Be sure C7125 is good.

 

[iFix]

Replaced it still the same. On Q7130 G2 i have 12v on G1 only 2v

 

[iFix]

16v sorry not 12v

 

[iFix]

In OS stays on same percentage and it says replace now/battery is not charging

 

[2informaticos]

You can only have 16V on PPBUS_G3H if Q7130 is shorted on high-side; or U7100 internally, less probably.
Did you change C7125???

 

[iFix]

yes i changed C7125 still the same and i tried another u7100. I need to find another Q7130 cause i don't trust this one from a board for parts...

 

[2informaticos]

You don't need to trust a MOSFET; test it out of board.
Use Google, it should bring out some test methods for you...

 

[iFix]

Yes i tested they were all good. Funny thing is that i've put a 2014 year model battery and works fine charging and holding. Don't know if the batteries are bad, but even with the original shows the same.

Thank you for your help