Reset an HTC One smart phone from Cricket Wireless to its factory default through the phone's menus by going to the Backup & Reset section of the Settings app and choosing the Reset Phone option. Alternately, remove and replace the battery, then hold the Volume Down and Power buttons.
Resetting an HTC One to its factory default state is a common solution when the owner experiences persistent problems with the regular operation of the device, though it should only be used as a last resort after exhausting all other troubleshooting options. A factory reset, in some cases, erases all the data on the phone, including music, pictures, contacts not saved to the SIM card and any Google accounts added to the phone. If a user determines that she needs to perform a factory reset, she needs to back up her important and sensitive data in order to add it back to the phone.
When performing the factory reset through the software options, the user has the ability to choose whether or not she wants to erase all the data on her phone as well as any data on an external storage card, if she has one. The hardware reset method does not present this option.