A1989 820-00850 - don't turn on

yobad

Member
the fan i spinning
i get 20v 0.65A
screen dont turn on
i booted once, then nothig
CPU get hot
PPVCC_S0_CPU 1.8v
PPVCCSA_S0_CPU 1.025v
PPVCCIO_S0_CPU 0.9v
PPVCCEDRAM_S0_CPU 0v

what i have to verfiy after ?
 

yobad

Member
I can't enter DFU mode, but always I have error when I try revive or restore.
The MacBook was filed with dust and nicotine vapeur It was to dirty inside.
When I removed the motherboard and cleaned it works for once after the ultrasound cleaning it return back in the first state.
 
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