SOLVED - A2141 820-01700 No picture on internal or external - Turns on with chime and capslock response.

it-solve

Member
I disconnected the internal LCD and tested on the external, but still no picture.
NVRAM reset, still no.

Tried with a spare LCD. Same

Very dusty inside. No visible liquid
 

it-solve

Member
There is USB activity
I can detect it in target disk ode but comes with this message
1670289755210.png

DFU mode recognises it but fails to Revive it. Customer is after the data
 
Last edited:

it-solve

Member
Found some dirt and light oxidation around NANDs. Cleaned and now imaging in Target Disk mode.
Unreliable Macs.
1670368676716.png
 
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