Sony Xperia User Manual page 460

Check/Tap items
Check handset and SD Card memory space.
USB Storage Operations
Connecting USB Storage
Insert Micro USB Plug of USB storage straight into External Device Port
Screen,
USB device
Item name in Storage screen changes to
mounted.
If confirmation appears, follow onscreen instructions.
For details on connection with External Device Port, visit
Unmounting USB Storage
In Storage screen,
screen changes to
straight from handset
Always unmount USB storage beforehand.
Mounting USB Storage
Mount USB storage again.
In Storage screen,
Item name in Storage screen changes to
mounted.
Formatting USB Storage
When using new USB storage for the first time, always format it on handset.
Connect USB storage and, in Storage screen,
STORAGE
Formatting erases all data on USB storage. Carefully check any USB storage that was
used on another device before formatting.
Charge Battery while formatting, or format with adequate battery charge.
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(Settings) Xperia™ Connectivity
Unmount USB storage
Mount USB storage, and pull out Micro USB plug of USB storage
Mount USB storage
ERASE EVERYTHING
USB Connectivity
Unmount USB storage, and USB storage is
"Charging with AC
OK Check that item name in Storage
Unmount USB storage, and USB storage is
Erase USB storage
In Home
Detect
Charger."
ERASE USB