User's Manual

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Tap 【Running service】to see and control the running service
z Development setting：advised to use factory defaults, or
any change will make some function not available
.
4.4.5.5 SD card & device storage settings
Tap SD card & device storage to enter following to check total space,
available space, format SD card, etc
4.4.5.6 Language Keyboard Settings
Tap 【Language Keyboard】to enter setting interface