BackHow to perform a hard reset when my HTC One M9 is unresponsive — Step 1/7
If your HTC One M9 becomes unresponsive or doesn't perform as expected, you can perform a hard reset to return it to the factory default state.
Please note that all of your data, downloaded apps and settings will be erased during the reset. Ensure that any photos, music, documents or other data that you wish to keep is backed up somewhere else, other than on the device itself.
BackHow to perform a hard reset when my HTC One M9 is unresponsive — Step 2/7
Back Before resetting your phone, turn it off and then on again. This may fix some issues.
BackHow to perform a hard reset when my HTC One M9 is unresponsive — Step 3/7
Back Press and hold Volume down and Power buttons until the HTC logo appears on the screen.
BackHow to perform a hard reset when my HTC One M9 is unresponsive — Step 4/7
Back Scroll to factory reset by pressing the Volume down button.
BackHow to perform a hard reset when my HTC One M9 is unresponsive — Step 6/7
Back The phone will now wipe all contents.
BackHow to perform a hard reset when my HTC One M9 is unresponsive — Step 7/7
Back The phone will now reboot to the initial setup screen.