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:
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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:
If the device menus are frozen or unresponsive, you can master reset using hardware keys. To perform a master reset, follow these steps:
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:
When the Lock screen is displayed, Safe mode is displayed in the lower-left corner of the screen. To exit Safe mode, restart your device.
To turn off safe mode, follow these steps:
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