Hard Reset HUAWEI Ascend P7

First method:

1. Switch off the device.
2. Then press and hold Volume Up + Power button for about 10 seconds until you see Android recovery menu.
3. Afterward choose "Factory reset/wipe data" using Volume Down to scroll option, and pressPower button to accept.
4. Browse to option "Yes-detele all user data", and confirm that with Power button.
5. Confirm option "reboot system now" using Power button.
6. Success!.

Second method:

1. First of all, turn on your phone.
2. From the Start screen choose Settings.
3. After that tap Backup & reset.
4. Next select Factory data reset and then choose Reset phone.
5. At the end tap Reset phone again to confirm the whole operation.

Third method:

1. Make sure, that your phone is on.
2. Afterwards from the main screen type: *2767*3855# and press call (be carefull this method won't give any option to reverse the process!).

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.