In order to hard reset a Tel.Me. T910, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Tel.Me. T910 device will be brought back to the default configuration of a brand new device.
1. Turn on the phone.
2. Go to Settings > Other functions in settings > Recover Default Value.
3. Type in the phone's lock code (default code is 0000).
4. Wait for your phone to reset and restart. Voila, done.