Known common issues

[Jay]

Howdy,

Does anyone have a list of known common issues they can point me to or share?
I know about the capacitor issue on 820-2610 and 820-2850, the GPU issue on 15-17" 2011's and RAM slot pins on 820-3115.
But are there more common issues like this?

Reason for making a list like this is to filter out Macs that are sent my way a little better. Someone just wasted a good bit of cash shipping me 2011's with busted AMD chips I can not fix, would like to prevent more issues I can not fix like that in the future and save clients the shipping costs. Also a list like this will be useful to know just for knowledge sake

 

[dukefawks]

C7771 on 2610 and also the 15" models from the same age.
U8900 resolder on 820-3332.

The rest will all be liquid damage and could be anything.

 

[Alan.L]

bad 821-0814-A sata flex cables on the 13" 2011. Replace with newer revision part. 821-2049-A

 

[Jay]

Thanks guys, that helps.
So JTAG and backlight fuses I hear a lot of grumbling about is all liquid damage related?

 

[Alan.L]

yes. fuses rarely break. it usually the lcd connector gotten liquid there.