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Can't find SD card
Check the SD card power is OK:P1'5
is about 3.3V. Check the SD card
clock is OK:P1'6 is about 36MHz for
SD-HC and 13MHz for SD-normal.
Can't find SD card
Yes
Check whether the SD card
is locked.
No
No
Re p lace the main board
4-9
Yes
Yes
Trouble shooting chart
Push the SD card to unlock
Replace P1
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