820-00165 Random Issues - Dirty

Instafixx

Active member
For My Reference Only - FIU

820-00165.

Booting only on charger. Sometimes showing the question mark folder.

After opening the machine i found it is full of dirt. Customer has they had it kept for a couple of years.

Clean the dust properly. After inspection i find C5002/C5007/C5017 corroded. Replaced

U5460 corroded. Cleaned it.

Now i get fan spin for like 5 seconds. then it stops and fan starts again. It spins continuosly.

I get Magsafe.

PPBUS is 8.6V.


What can be the issue here ?

Tried SMC Bypass as well. Nothing
 
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