Go to "General Settings" on "Taskbar Menu, tap on "Reset".
Relevant information for Factory Reset.
Press "Power" button to turn on the device. When it is on, long press "Power" button until pop out the shutdown dialogue
Choose "Herstarten"(reboot), then the system will restart to go firmware patch process
Long press the "FrontLight" button immediately until recovery mode menu is shown up
Use the "FrontLight" button to move the light-bar to "Factory Rest" and then use the "Power" button to confirm the selection
Use the "FrontLight" button to move the light-bar to "Yes, delete all user data" and then use the "Power" button to confirm the selection
When the process is done, use the "Power" button to confirm the selection "Reboot"
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