In our description database there are 2 solutions for performing hard reset for ZTE F870.
Choose the first method and follow the steps to perform a hard reset. If the first solution does not work, try the next method.
Please remember! Hard reset will delete any and all data your device contains; like pictures, contacts, messages, apps etc. Everything. ZTE F870 device will be brought back to the same configuration as that of a brand new device.
1. Switch on the device by pressing the Power button.
2. Now open the Dialer and enter this code in: *983*22387#
3. Lastly, confirm the process by selecting Yes.