no water damaged. tried another housing not solved. tried AC2 not solved
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A2337 820-02016 Circle with exclamation mark
- Thread starter farfan14
- Start date
"4013 / 6 - errors indicate bad NAND Sysconfig or wrong position"
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DFU Mode Restore (Macs) - LogiWiki
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Did you take them from same board model?
Kept the same position?
Kept the same position?
Was the battery connected?
Also try with another cable.
Also try with another cable.
Did you have exact same symptom before touching the NANDs?
so symptoms on these photos are with original nands ( before touch mac was like this) after i changed NANDs mac wasn't turning on at all and i put it in dfu mode and try restore during restore "apple logo" appears no any loading bar or exclamation in circle just apple logo and after 20 seconds 4013 error in ac2 and mac display goes black. i understand that it wasn't NANDs problem and after that i resoldered original
nands back and it returned in that position like it was before i touched mother. ( without dfu restore ) just soldered original nands back. after that again tried dfu restore and same problem
nands back and it returned in that position like it was before i touched mother. ( without dfu restore ) just soldered original nands back. after that again tried dfu restore and same problem
DFU errors meaning is not clear.
Apple didn't provide any information.
All we have is from experience of various technicians.
This is not an exact science...
Apple didn't provide any information.
All we have is from experience of various technicians.
This is not an exact science...
Didn't see that problem on the forum yet...
820-02020 exclamation mark after start
got this A2338 with the exclamation mark after the start So i forced it in to the DFU mode 1. download system ok 2. copy ok 3. extrract ok 4. install ok and ends in error tryed rvieve and restore but in the end got Error 2006 0x7d6 (failed to restore device in recovery mode) the cable is a...
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