A1502 820-3476-A no boot

[hgoncalves]

HI,

I have an A1502 820-3476-A that powers on, but it takes for ever loading OSX and always crashes when the loading bar (on the Apple black screen) reaches about 50%, making reboot and starting all over again.

It had a bit of corrosion on the U1900 and i've cleaned the solder and solder it back again.

Already replaced disk, but with the same result. All measures that i made were right, and don't know what else i can do. Can you help?

 

[2informaticos]

Clean ME region into BIOS.
Some clean file should be already posted on the forum...

 

[hgoncalves]

Thanks. Found one for the 820-3476. Is it the same?

 

[2informaticos]

Only if specifies to be clean ME.

820-3476-Working-CleanME.bin

drive.google.com

Already posted on the forum...

 

[hgoncalves]

Thnaks! yesterday already downloaded one from the forum with the Clean ME (didn't know that).
After instaled new file, the behavier is the same. Even instaling new OSX, it doesn't pass half bar...

 

[2informaticos]

Run corresponding EFI ASD.

 

[hgoncalves]

Sorry...
I couldn't find it on the forum, or on the web. Can you please tell me where I can download it?

 

[2informaticos]

3S162...

ASD EFI 3S162.dmg

drive.google.com

 

[hgoncalves]

Thanks!

 

[hgoncalves]

It passed all tests. No error found...

 

[2informaticos]

Can you install Windows on it?
If yes, then start to install drivers and see when it crashes.