How to put Allview V1 Viper i4G in Clean Boot mode

How to put Allview V1 Viper i4G in Clean Boot mode


1. Hello! First of all, switch off the device.
Hard Reset for Allview V1 Viper i4G
2. Now press and hold Volume Up + Power Button for a few seconds.
How to put Allview V1 Viper i4G in Clean Boot mode
3. You are now in the Clean boot mode.
How to put Allview V1 Viper i4G in Clean Boot mode

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