Method one, using recovery
1. Mobile phone first shutdown, and then the mobile phone in the state of shutdown, while holding down the mobile phone power button and volume on the key, to appear on the screen release can be
2. Then select wipe data/factory reset "erase data, restore factory settings" after restarting the phone.
Method Two, g3819d recovery method
1. Under the Standby page, click "Application".
2. Click "Set".
3. Slide the phone screen up with your finger and choose "Reset".
4. Click "Restore Factory Setting".
5. Click "Reset Device".
6. Click "Delete All".
After the completion of the above operation, when the mobile phone automatically restart, the phone will successfully restore the factory settings.
Hint: If you need a password to restore the factory setting prompts, please enter your own set of screen lock password to unlock it.
