820-2530 battery issues

[samiam]

R7040 is still there also
is a 6258AHRTZ

i assume the ISL rework and everything was working until a shitty charger did something to bring it to where it is now

could the ISL gotten fried and everything else be fine?

 

[dukefawks]

Yes that is of course possible. Check R7040 value against the schematic. Also check R7005

 

[samiam]

replaced the ISL and now it's running off of AC but still no battery, everything else looks fine any ideas?

 

[dukefawks]

Battery recognized in OSX?

 

[samiam]

nope, doesn't see battery and BIL doesn't light up

 

[samiam]

maybe too much heat/time on ISL when I was putting it down? Do you think I should try another one?

pins 17/18 still giving 21.1k resistance

 

[dukefawks]

Dead SMC...

 

[samiam]

even though it can run off of batt after i start it on AC? damn so close

 

[dukefawks]

Replace it from donor board.

 

[samiam]

don't have a BGA machine

 

[aprendiz]

Dont need BGA machine, it is a small chip ..... Use your hot air station and preheater if you have, hot air station is enough if you don't have preheater, practice in donor boards first ....