It will remove all the data ,contacts and apps that you installed
At the beginning hold the Power key to switch off your device.
Afterwards press and hold Volume Down + Power button for a while.
Release held keys when you see an Android menu on your screen..
Then press Volume Down to select option Factory reset, and press Power button to confirm.
Good job! The hard reset has just been performed.
Switch on the device by using the Power key.
Then from Main Menu go to Settings and tap Storage.
Next choose Reset phone and select Erase all data.
Tap OK to confirm your choice.
HTC Sensation XE Restore Factory Hard Reset Format Phone.So lets start the HTC Sensation XE Restore Factory, HTC Sensation XE Hard Reset.Turn Off the mobile phone for few mints.HTC Sensation XE Remove Pattern Lock.
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Restore Hard reset will set your phone in origional factorry settings. It will remove all the data and apps that you installed. Your contacts will be removed and you have to add them again.