having 2015 a1502 820-4924.
machine came in with no power at all,liquid spilled. ultrasonic cleaned and replaced most heavy spilled components.
power back on already, hear the chime, then restarts,chime , then restarts, chime then loops....feels like the P+R+COMMAND+OPTION reset thing going on all the automatically.
tried disconnected keyboard and touch pad, same
onoff_smc =3.3v
ws_kbd_onoff_l=3.3v
voltage on pin 1,2,3 are 0 on J4813(keyboard connector)
diode mode on them are all around 400+
so I replaced U4850, same stuffs.
doubted corrosion under U4820 and U4830, flux and heated , but same stuffs still
any suggestions please?
thank you!
machine came in with no power at all,liquid spilled. ultrasonic cleaned and replaced most heavy spilled components.
power back on already, hear the chime, then restarts,chime , then restarts, chime then loops....feels like the P+R+COMMAND+OPTION reset thing going on all the automatically.
tried disconnected keyboard and touch pad, same
onoff_smc =3.3v
ws_kbd_onoff_l=3.3v
voltage on pin 1,2,3 are 0 on J4813(keyboard connector)
diode mode on them are all around 400+
so I replaced U4850, same stuffs.
doubted corrosion under U4820 and U4830, flux and heated , but same stuffs still
any suggestions please?
thank you!