How to factory reset HTC One S9? How to wipe all data in HTC One S9? How to bypass screen lock in HTC One S9? How to restore defaults in HTC One S9?
The following tutorial shows all method of master reset HTC One S9. Check out how to accomplish hard reset by hardware keys and Android 6.0 Marshmallow settings. As a result your HTC One S9 will be as new and your MediaTek Helio X10 (MT6795) core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.