820-00165 No Boot

2informaticos

Administrator
Staff member
Try known good BIOS.
Be sure all SPI Bus Series Termination resistors are good; check their traces too.
Clean J6100 if dirty; remove if is very bad.
 

2informaticos

Administrator
Staff member
If you plan to stay in business with MacBooks repair, get Medusa 3; with several adapters.

You can also use a classic USB programmer, as cheap as CH341A.
In such case, you need to remove the SPI chip (U6100).
 

Instafixx

Active member
Okay i ll order it. Any other list of tools where i can cross check my inventory and see if i need to get more things?
 
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