How to factory reset an Android phone or tablet
In this tutorial you will learn how to factory reset an Android phone or tablet. The simplest solution.
When an Android device refuses to turn on, you need to perform factory reset from “Recovery Mode” – “Recovery Mode". We will have to use a combination of buttons to enter the recovery mode. Here are the buttons for some Android devices you may have:
Samsung Galaxy: Power + Volume Up
Google Pixel: Power + Volume Down
OnePlus: Power + Volume Down
Motorola: Power + Volume Down
Use the volume buttons again to highlight “Factory Data Reset” (“Factory data reset”) and press the power button to confirm.
The factory reset process will begin and you will end up with an Android phone in the same state it was when you first bought it. If factory reset and nothing else worked, it's unfortunately time to retire your phone and get a new device Android. Smartphones don't last forever and it can actually be unsafe to use an old Android phone.