HTC One M9

Step 1 of 5

Find "Reset phone"

Slide your finger down the display starting from the top edge of your phone.
Press the settings icon.

Step 2 of 5

Find "Reset phone"

Press Backup & reset.

Step 3 of 5

Find "Reset phone"

Press Reset phone.

Step 4 of 5

Restore factory default settings

Press OK.

Step 5 of 5

Restore factory default settings

Press OK to confirm.
Wait a moment while the factory default settings are restored.
Follow the instructions on the display to set up your phone and prepare it for use.