8.4.5.4 Auto shut down setup:
NOTE: After you set this function to OPEN, the terminal won't shut down during
charging up, but only shuts down the background light.
Choose 'AUTO SHUT DOWN SETUP' and press 'ENTER'
Press 'ENTER' directly
Input auto shut down time (range from 1 to 99), and press
'ENTER'
Press 'CLOSE'
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