Hard reset Lenovo S820

OS: Android 4.2 (Jelly Bean)

CPU: Quad-core 1.2 GHz Cortex-A7

Display: 4.7" inc

Camera: 12 MP, Single

For Hard reset Lenovo S820 use following steps

1. Turn off your smartphone, in any available way

2. Press and hold the Volume Up and Power buttons simultaneously for a few seconds (up to 20)

3. The keys can be released when the LENOVO logo appears on the screen

4. Select "wipe data / factory reset", the Volume Up / Down keys are used to navigate the menu, and the Power key to confirm the selection

5. Select "yes" and confirm by pressing the Power button