In order to hard reset a BenQ-Siemens S68, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
BenQ-Siemens S68 device will be brought back to the default configuration of a brand new device.
1. Switch on the phone.
2. Now type in this sequence. *#9999#
3. Your phone should restart now. That means we are done. Thank you.