In order to hard reset a Huawei Ascend G7, you should perform the following steps.

Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Huawei Ascend G7 device will be brought back to the default configuration of a brand new device.

1. Lets get started. Begin by pressing the Power button to turn your phone off.

2. Now press and hold the Power and Volume Down and Up buttons for five seconds.

3. Let go of these buttons when Android logo shows on screen.
4. Enter Recovery Mode by pressing the Power button.
5. Select the wipe data/factory reset option. Use Volume buttons to scroll and Power button to select.

5. Using the same method as above, select Yes, delete all user data and reboot system now.

6. The hard reset process is complete. Congratulations.