In order to hard reset a BenQ A520, you should perform the following steps.

Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
BenQ A520 device will be brought back to the default configuration of a brand new device.


1. Make sure that your phone is turned on.
2. Is it? Okay then, open the Dialer.
3. Use the keypad to type in this code, *#9999#, and confirm it by pressing Call button.
4. Your handset will now restart, so good job, you've completed the hard reset.