In order to hard reset a BenQ M7, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
BenQ M7 device will be brought back to the default configuration of a brand new device.
1. First, turn on the phone.
2. Second, open Dialer and type in the *#9999# code.
3. Now confirm your action with a press of a Call key.
4. The phone will restart now. If it does, good job, the hard reset is complete.