(SOLVED) 820-3437 a1466 intermitent power

only can turn on when reconnect the battery. once u shutdown cant turn on again the charging indicator turns green
and then orange once u press power button. tried change battery still same
board is clean no sign of corossion
run diagnostics no issues found.

PPBUS_G3H 8.6V
 

2informaticos

Administrator
Staff member
Remove battery and get it working properly with charger first.
Once charger is connected, Magsafe light MUST switch from green to amber; before pressing power button.
If not, try another LIO board/flex, as first stept.
Confirm if you are in this case.
 
same issue with or without battery replaced LIO board/flex,
can on but once u shut it down cant turn on again.
after trying to turn again after pressing power button from orange light it will turn to greenlight for 1sec then orange again
no fan spin no chime you must to reconnect the battery again if battery removed u must to reconnect the charger.
anyway, once u turn on 1stime after battery reconnection everything is normal and working fine.
no idea what to check from here.
 

2informaticos

Administrator
Staff member
If LED flashes pressing power button, seems that SMC reset is done instead.
Disconnect keyboard and use R5116 pads tu control power.

Post U5110 voltages, w/ and w/o keyboard connected.
 
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