Step 1
Firstly, switch off your device and enter into recovery mode. Different Android devices have different methods to boot into recovery, but all of them use hardware keys. For most Android devices, you’ll need to hold several hardware keys simultaneously, such as the Home, Power, Volume and Camera keys. If you can’t get into Recovery mode using any of the hardware key combinations, then you can Google how to enter into recovery mode for your specific device.
Step 2
Once you have entered into recovery, scroll down to Wipe data/Factory reset using your Volume down key and select it using the Power key.
Step 3
Next, Scroll down to Yes – delete all user data and press the Power key on your device.
Step 4
The reset process might take a while and once the reset is complete, select Reboot system now using the your Power key. Your phone should now reboot and you won’t need to enter your password or pattern in order to unlock it.

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