LG GT540 User Manual page 94

Getting to know your phone
5 Touch Format SD card, then
confirm your choice.
6 If you set the pattern lock, input
the pattern lock and select Erase
Everything. The card will then be
formatted and ready to use.
NOTE: If there is content on your
memory card, the folder structure
may be different after formatting
since all the files will have been
deleted.
Tip!
If your memory card is already
unmount, you can use the following
step to format it.
Touch Touch Applications>
Setting>SD card & phone storage>
Format SD Card
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