RATTAN QUERCUS Owner's Manual page 23

9. Auto Shut-off
The display will be auto-turned off when the bike is not operated for
a time. Enter the setting interface, choose dormancy. The auto
turn-off time can be set from 0~9 minutes. The default auto shut-off
time is 5 minutes.
* 0 minutes shows that the auto shut-off is closed.
10. Restore Settings
Select factory, change " YES " and press " i " to confirm restore the
factory settings.
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