820-3209 Prohibited sign

tlough75

Member
Got an 820-3209 that had a tiny bit of liquid damage to backlight area. Repaired, tried to boot and it gives me the prohibited symbol. Iv'e ran into this problem like twice before and cannot fix. From what I understand, this means it cannot load macos due to corruption on the SSD Is this correct?
 

tlough75

Member
Original SSD was inside. After a few tries of it restarting I got it to work but it is running slow. The CPU is really hot. HW Monitor shows the CPU is consuming 3 watts, not sure if that is a normal thing.
 

2informaticos

Administrator
Staff member
USB macOS recognizes internal SSD in Disk Utility?
Can you format it?

Try clean ME BIOS, just in case...
 
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