HTC One hard reset to default factory setting.

Resetting your HTC Android device permanently delete all your data and customized settings, all the accounts that you added in the Settings > Accounts & sync and all data associated with these accounts, personal data that you have created or synchronized to your phone, data and system settings and programs and will remove all downloaded and installed application on your device’s hard drive. Files such as your music, photos, videos, and documents will also be deleted if you select the Erase all data option. So your first work is to make a back up of any data and files you want to save before you do a factory reset.


Performing a factory reset via the settings menu
  • Open the Notifications panel and press Setting.
  • Click Backup / Restore and Reset .