Hard Reset on Huawei H1511

How to Hard Reset on Huawei H1511 Nexus 6P A1 TD-LTE?

Make sure you turned off the device.
Hold down the Volume Down key and the Power button.
Then select "Recovery" using the Volume keys and the Power button.
When the Android logo appears, hold down the Power button.
Meanwhile, press and release the Volume up key.
Next select "wipe data/factory reset" using the Volume keys and the Power button.
Choose "Yes - delete all user data" using the same keys.
Press "reboot system now" to finish the process.
That's all! After a Hard Reset, the memory of your phone cannot be restored.