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It was water damaged. closed to ISL, changed it and worked fine except battery not detected. Found R5280=3.4V both side, R5281=3.4v both side. Checked BIL looks good. Any help please.

Checked U5510/20 area and continuity , all are good . any other idea.Thanks.

I changed U5510 and found p1 : 3.1V and still its cursor is moving slow. So is it right 3.1 V?

This is ASD EFI3S144. The error is as following attached:

this is water damaged and works slow. After run ASD efi shows me SMC io failed. so what should i check further. Thanks.

i was not able to extract your file. see the attached.

i got it from another scrape mb , your one unfortunately didnt work , I did google and found if you swap bios and update security with El Capitan then it should work and it works for me. Thanks.

at last swap a couple of bios chip and luckily found the right one and update EI capitan security then now it looks normal. Thanks 2informaticos. Make it done.

Hi, i upload the file, need clean Me. Thanks.

I found it , thanks.

thats great . will it be available on your online store?

Hi, from where i should buy Medusa 2? I am using CH341A but this one sometimes cant recognize some bios chip. any suggestion please.??

Replaced again bklight driver and fix the path A5. Thanks a lot, you guys awesome.

This was pure water damaged around video connector and some other place too. After ultrasonic turn on but no backlight. Backlight out was 8.5 v so Changed bklight driver and got the back light back but after few minutes again bklighet gone. changed bklight driver again now bklight out is 20.9v...

After smc reset i see the Diplay and chime too. Could you please tell me how to do clean ME bios. Thanks for your assistance.

After changing Bios , CPU getting hot and found USB activity on I/o card side but no USB activity on other side no display as well.

https://www.ghostlyhaks.com/blog/apple-efi/25-clean-me-region is it good to follow?

what do you mean new Bios, Clean me? Can i swap a good known bios from another MB?

NO Activity USB. board seems to be stuck it means no way to fix it?

Pins 28-30 of J8300= 0v (in the first few seconds, when board starts ,Disconnect J8300) 1 & 4 of U8330= 0v ,(in the first few seconds, when board starts ,Disconnect J8300) Checked twice.