Huawei Ascend D Quad hard reset1. From the Home screen, press the Menu Key and touch Settings.
2 Touch the Privacy
4 Touch Factory data reset.
5 Touch Reset phone.
6 Touch Erase everything.
If you know Huawei Ascend D Quad hard reset using buttons / keys pls leave comment.
Firmware Upgrade mode
Power off your handset. Insert the microsd card with dload/update.app folder and file in the root directory into the handset. Pressing the VOLUME UP and VOLUME DOWN keys, then press the POWER key to power on the phone, and VOLUME UP key and VOLUME DOWN key should be pressed more than 3 seconds, then enter the Software Upgrade Mode.
Press menu key to choose Settings->Storage->Software Upgrade->SD card Upgrade->Confirm->Upgrade to start the upgrade.