M3 Mobile M3 SKY, User Manual

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Basic usage
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2.5 Reset
2.5.1 Soft reset
When an unexpected error occurs while using the device, SOFT RESET allows your
device to restart, similar to rebooting a computer. It will adjust memory allocation -
all records and entries are retained after soft reset but unsaved data or files will be
lost.

Press the RESET BUTTON briefly.
2.5.2 Clean boot
When an unexpected error cannot be solved with SOFT RESET, perform CLEAN
BOOT to restart the system. It will erase all data stored in the device except data
stored in Flash Disk and return to its default settings.
Follow below steps to CLEAN BOOT. ( or )

Turn off the device by pressing the power button more than 10 seconds.

Press and hold Right direction button then press the power button.

‘Clean Boot’ will be displayed on screen and press ‘3’ to precede clean boot.

Device will be initialized after clean boot that is, clean boot deletes
everything except data stored in Flash Disk.