Apple MC408LL Apple Technician Guide - Page 75

Lock the customer SD Card, Replace Logic board.

Page 75 highlights

5. Check that all system software Yes have been applied before insert a known-good unlocked No SDHC Memory card and verify that it can now be correctly read and written on system. 6. Retry with customer's SD card Yes and verify that it can now be correctly read and written on system No 7. Lock the customer SD Card Yes and verify whether it can't anymore be written.. No Go to step 6 Replace Logic board. M17 Issue fixed by software update. Go to step 7. Only customer's SD card is not functioning properly. Contact vendor for support options. System is functional. Replace logic board. M17 2010-08-03 Mac mini (Mid 2010) Symptom Charts - Input/Output Devices 75

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Mac mini (Mid 2010) Symptom Charts — Input/Output Devices
75
2010-08-03
5.
Check that all system software
have been applied before
insert a known-good unlocked
SDHC Memory card and verify
that it can now be correctly
read and written on system.
Yes
Go to step 6
No
Replace Logic board.
M17
6.
Retry with
customer’s SD card
and verify that it can now be
correctly read and written on
system
Yes
Issue fixed by software
update. Go to step 7.
No
Only customer’s SD card is
not functioning properly.
Contact vendor for support
options.
7.
Lock the customer SD Card
and verify whether it can’t
anymore be written..
Yes
System is functional.
No
Replace logic board.
M17