Master reset: T-Mobile 665

Learn how to master reset the T-Mobile 665 through the menu or hardware keys.

 

 

 

 

Master reset from settings menu

 

A master reset restores the original factory settings and may delete your personal data on the internal storage, such as downloads, ringtones, images, apps, contacts, and Visual Voicemail.

 

To perform a master reset, follow these steps:

 

  1. Back up all data on the internal memory. See: Backup & restore.
  2. Back up all necessary data that is on the internal memory.
  3. Remove the back cover.
  4. Remove the battery.
  5. Remove the SIM card.
  6. Wait several seconds then reinstall the battery and SIM card and replace the back cover.
  7. Press and hold down the Pound (#) key and the red End key at the same time until a menu screen appears.
  8. Select the green Check mark.
  9. The phone will reset.

 

 

Master reset with hardware keys

 

A master reset restores the original factory settings and may delete your personal data on the internal storage, such as downloaded content, ringtones, images, apps, and contacts. It does not delete data stored on the SIM card or SD card.

 

If the device menus are frozen or unresponsive, you can master reset using hardware keys. To perform a master reset, follow these steps:

 

  1. Back up all data on the internal memory.
  2. Back up all necessary data that is on the internal memory.
  3. Remove the back cover.
  4. Remove the battery.
  5. Remove the SIM card.
  6. Wait several seconds then reinstall the battery and SIM card and replace the back cover.
  7. Press and hold down the Pound (#) key and the red End key at the same time until a menu screen appears.
  8. Select the green Check mark.
  9. The phone will reset.