Huawei Ascend Y201 hard reset using buttons

1. Turn your phone off.
2. Press and hold both Volume UP + HOME + POWER ON the phone.
3. After your phone vibrates release only power button but keep pressing the volume and HOME buttons until recovery menu apperars on the screen.
3. Highlight Wipe Data/Factory Reset with Volume down button.
4. Press Power to confirm.
5. Reboot system after recovery hard reset.

After all is done press power to reboot system now.

After data wipe has completed you are done. reset Huawei U8666 Android phone done.

 huawei ascend y201 pro hard reset

If your phone is responding to screen input, then open Settings from the Applications menu. Tap Backup & reset > Factory data reset; click Reset phone and then Erase everything to format your phone.

Restoring Factory Data
If you reset your phone to its factory settings, all of your personal data stored on the phone, including information about your Google account, any other accounts that you
have configured, your system and application settings, and any applications you have installed will be erased. Resetting the phone does not erase any system updates you
have downloaded. Using the check box provided, you can also select to erase all the data stored on your SD card or on the phone’s internal SD card, which includes files
that you have downloaded or copied there, such as music or photos.
1. On the Settings screen, touch Privacy > Factory data reset.
2. When prompted, touch Reset phone, and then touch Erase everything. The mobile phone resets the settings to the original factory settings, and then restarts.

General advice: Before you buy a new cell phone or new tablet, please try the following procedure to repair your device in a software way. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before doing factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.! Please also note, that a hard reset operation will not unlock your mobile phone's SIM lock or network lock, but it will remove the unlock pattern, remove the user password or PIN password (NOT the SIM card's 4 digit PIN code). Also note that the firmware version will not be affected in any way, it will not be downgraded, it will remain the same you are using and if you have rooted your device, root privileges remain also unaffected.