820-3476,running slow after rescue from liquid spilled

[roy.ruan]

Having a 820-3476 ( SN check shows late 2014) a1502 boards.

board had liquid spilled, got previous repair attempts. wasn't professional.

so I ultrasonic cleaned the board, found that it doesn't charge, always show the "charge machine" logo. but never get to power on.

found that it's short on smc_5_g3_scl (the battery scle to isl and SMC) .injected 3v. found that isl is hot and then replaced.

then can recognize the battery's scale , and power up.


but fan start spinning full speed, can't boot into OS . ( tried few SSD, only one booted in) ,feels like sensing circuit /sensors issue, but NO ASD... tried 3S162 but says it doesn't support.

so where should I start now??

thanks ahead!

 

[phuketmymac]

try the ASD EFI for sensor issues, not ASD OS

 

[roy.ruan]

EFI version was what I tried

 

[dukefawks]

3S155 or 3S162 should work on this one, I think this needs 155.

 

[roy.ruan]

Tried 162 efi and 155 OS both didn't work , one said unsupported model one has that "stop" sign and didn't boot in

 

[dukefawks]

Late 2014 does not exist. What is your serial number?

 

[roy.ruan]

the SN check shows late 2014, I have an idea though, since 3476 is model for both 2013 and 2014, if I revise the SN in the EFI (use a 2013 machine's SN) , you think it should make the ASD work?

 

[dukefawks]

ASD does not look at serial, it looks at the MBP8,4 or whatever marker and SMC firmware. But if you don't want to give you serial number I can't help you.

 

[roy.ruan]

the SN is [h=4]C02N7AC0G3QH[/h]

 

[dukefawks]

That is a mid-2014 and should run 3S162 nothing special to it.