In order to hard reset a Qtek 8100, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Qtek 8100 device will be brought back to the default configuration of a brand new device.
1. Switch on the phone.
2. Hold down two Softkey buttons.
3. Hold down the Power button for two seconds. Keep holding Softkeys.
4. Bootsplash screen should appear. After it does, press 0. This will begin the Factory reset.
5. Done.