Learn how to wipe or master reset the HTC One through the menu or hardware keys. Find out more on this page:

Cache partition

Master reset

Safe mode

Wipe cache partition

If the phone is not working correctly, you may need to master reset it and also clear the cache partition. These two resets clear different parts of the phone storage. Unlike a master reset, wiping the cache partition does not delete your personal data.

To wipe the cache partition, follow these steps:

1. See: Wipe cache partition to clear system memory.

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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 downloaded content, ringtones, images, apps, and contacts. It does not delete data stored on the SIM card or SD card.

To perform a master reset, follow these steps:

1. Back up all necessary data and synchronize files. See: Prepare for a master reset and back up data on Android
2. From any Home screen, tap the Applications icon.
3. Scroll to and tap Settings.
4. Scroll to and tap Backup & reset.
5. If necessary, clear the Automatic restore check box.
6. Tap Reset phone.
   Note: If screen lock is enabled, enter screen unlock information to proceed.
7. Scroll down and select the Erase all data check box.
8. Tap OK.
9. Tap OK again to confirm.

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. If the device is responsive and can synchronize files, save any open files and back up all necessary data to a computer.
2. Press and hold the Power button
3. Tap Power off.
   Note: Device contains internal battery. Therefore, device battery cannot be removed and reinserted as part of a master reset using hardware keys.
4. Simultaneously, press and hold the Volume Down key and the Power key.
5. When you see the screen with three skateboarding Androids, release the both keys.
6. Press the Volume Down key to select FACTORY RESET.
7. Press the Power key.

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Turn on and use safe mode

Safe mode allows you to turn on the device with third-party apps disabled. Then you can easily remove all apps that may be causing a conflict or software problem.

To turn on safe mode and use it to fix app problems, follow these steps:

Turn on safe mode

1. Turn the device off.
2. Press and hold the Power key.
3. When 'Samsung Galaxy S III' appears on the screen, release the Power key. Immediately after releasing the Power key, press and hold the Volume down key.
4. Continue to hold the Volume down key until the device finishes restarting.
5. 'Safe mode' will display in the bottom left corner of the screen. Release the Volume down key when you see 'Safe Mode.'
   

Uninstall third party applications

1. From any Home screen, tap the Applications icon.
2. Tap Settings.
3. Tap Application manager.
4. If necessary, swipe right to the Downloaded screen.
5. Tap the desired application.
6. Tap Uninstall and then tap OK.

Turn off safe mode

To turn off safe mode, follow these steps:

1. Press and hold the Power key.
2. Tap Restart. Tap OK.

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