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2.3.7 Language
Rotate the INT knob to select the language menu, press the INT knob to enter the
language setting interface, rotate the INT knob to select "English" or "Chinese", and then
press the INT knob to confirm.
2.3.8 Firmware Version
Rotate the INT knob to select the Firmware Version, press the INT knob to enter the
firmware version interface, short press the INT knob again to return to the main menu.
2.3.9 Update Firmware
Rotate the INT knob to select Update Firmware, short press the INT knob to enter the
firmware upgrade interface, rotate the INT knob to select "Yes" or "No", and then press
the INT knob to confirm.
2.3.10 Factory Reset
Rotate the INT knob to select Factory Reset, press the INT knob to enter the Factory
Reset interface, rotate the INT knob to select "Yes" or "No", and then press the INT knob
to confirm.