AT&T MERLIN LEGEND Release 3.1 System Programming Manual page 370

Memory Card
Card Missing or Card Not Inserted Correctly
The memory card is either not inserted or is inserted incorrectly. The backup is
terminated. You must reinsert the memory card and repeat the backup
procedure. This screen may also appear if the wrong type of memory card is
inserted and a backup or automatic backup is requested within one minute of
insertion. Verify that the card is a translation memory card.
Card Is Write-Protected
The memory card is write-protected. You must remove the memory card, flip the
write-protect tab, reinsert the memory card, and repeat the backup procedure.
!
CAUTION:
The memory card may be write-protected to avoid the accidental erasure
of the backup files. Make certain this is not the case before you change
the write-protect tab.
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Common Administrative Procedures