How to factory reset HTC One M9? How to wipe all data in HTC One M9? How to bypass screen lock in HTC One M9? How to restore defaults in HTC One M9?
The following tutorial shows all method of master reset HTC One M9. Check out how to accomplish hard reset by hardware keys and Android 5.0 Lollipop settings. As a result your HTC One M9 will be as new and your Qualcomm Snapdragon 810 MSM8994 core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.