In order to hard reset a Alcatel OT-E105, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Alcatel OT-E105 device will be brought back to the default configuration of a brand new device.
1. Turn your phone on.
2. Open phone's dialer and type in this code: 25228353.
3. Confirm with Call key.
4. Your phone will now restart.