In order to hard reset a DBTEL 5688, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
DBTEL 5688 device will be brought back to the default configuration of a brand new device.
1. First, turn on the phone. Press and hold the Power button.
2. Second, open Menu and Settings.
3. Continue to Change PC settings, select Update and recovery.
4. Tap in the safety code 1234 in order to start the process. Voila!