There are two ways to master reset your Samsung Galaxy Alpha,First is,Reset from settings menu and the second one is using hardware keys (If the device menus are frozen or unresponsive, you can master reset using hardware keys). That's are we want to show here How to do this.are you ready guys?Now,Let's do this....
How To Soft Reset Samsung Galaxy Alpha:
*Back up all data on the internal memory.
*From any Home screen, tap Apps.
*Scroll to 'USER AND BACKUP,' then tap Backup and reset.
*If desired, tap Automatic restore to clear the check box.
*If desired, tap Back up my data to clear the check box.
*Tap Factory data reset.
*Tap Reset device.
*If you have screen lock turned on, enter your PIN or password.
*Tap Delete all.
Samsung Galaxy Alpha Hard Reset
*Turn off the phone. If the phone will not turn off, remove and re-insert the battery.
*Press and hold the following three buttons at the same time:
Volume Up key
*When the phone vibrates, release the Power and Home key but continue to press and hold the Volume Up key.
*When the Android System Recovery screen appears, release the Volume Up keys.
*Press the Volume down key several times key to highlight 'wipe data / factory reset.'
*Press Power button to select.
*Press the Volume down key until 'Yes -- delete all user data' is highlighted.
*Press Power button to select and start the master reset.
*When the master reset is complete, 'Reboot system now' is highlighted.
*Press the Power key to restart the device
That's It Very Easy!