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The basics
39
Locking the touch keys
You can lock the touch keys on the device to keep any
accidental key presses from causing a program’s launch or
device switch on or off.
• To lock the keypad, press
.
• To unlock the touch keys, press any key except for touch
keys and then press
.
Using an optional memory card
Your device has an expansion slot compatible with microSD
memory cards, which are primarily used to back up or
transfer files and data.
Note
: Use only compatible memory cards with your device.
Using incompatible memory cards, such as Secure
Digital (SD) cards, may damage the card, as well as the
device, and data stored on the card.