Hey,
working on 820 3437 motherboard, No liquid damage. corrosion and no one touch on this motherboard before me!
i don't replace any component too because i need first your opinion!
This one first time i had in store come with problem no charge and goes off suddenly but i realize that problem is the battery!
in my store i test the mac with other original battery and the machine work's perfectly!
i send to client the machine and he don't replace the battery!
Now the machines some times turn on some times no! When start work's perfectly but when i turn it off and try to turn on again i can see the fan sniping 1 sec and off!
In my opinion this macbook, because shut down suddenly very times corrupted the bios!
can you check this original file if it was working properly??
https://drive.google.com/file/d/1GJytmcqtE4xzGEdv1hEAsNo9Jz8VLqlf/view?usp=sharing
thanks
working on 820 3437 motherboard, No liquid damage. corrosion and no one touch on this motherboard before me!
i don't replace any component too because i need first your opinion!
This one first time i had in store come with problem no charge and goes off suddenly but i realize that problem is the battery!
in my store i test the mac with other original battery and the machine work's perfectly!
i send to client the machine and he don't replace the battery!
Now the machines some times turn on some times no! When start work's perfectly but when i turn it off and try to turn on again i can see the fan sniping 1 sec and off!
In my opinion this macbook, because shut down suddenly very times corrupted the bios!
can you check this original file if it was working properly??
https://drive.google.com/file/d/1GJytmcqtE4xzGEdv1hEAsNo9Jz8VLqlf/view?usp=sharing
thanks