In order to hard reset a Hantel HT6608, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Hantel HT6608 device will be brought back to the default configuration of a brand new device.
1. Press'n'hold the Power button until the phone turns on.
2. Enter any one of these codes: *#77218114# or *#881188# or *#94267357# or *#9426*357# or *#19912006# or *#118811# or *#3646633#.
3. Wait for the phone to reset & restart. Done.