[SOLVED]820-2915 stuck on apple logo bar at 30%

Repairable

Active member
Hi all,

got a 820-2915 mac here

put the logic board in a known good working housing + ssd and same result

replaced all parts like hdd/ssd/cable/RAM/ nothing connected etc, and Always stuck on apple logo about 30%

also known good SSD and ios same result

ASD gives no errors.
 
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