How to reset the VG814 to factory settings via the hardware button?

How to reset the VG814 to factory settings via the hardware button?

1. Power on the VG814 and locate the "RESET" button (marked on the device casing). 2. Press and hold the RESET button for 10–15 seconds until the system indicator flashes. 3. Release the button and wait for the device to restart—all configurations will revert to factory defaults.