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    Restarting and resetting your device

    You can force your device to restart or shut down in situations where it stops responding or won't restart normally. No settings or personal data get deleted.

    You can also reset your device to its original factory settings, with or without deleting some of your personal data, such as music and pictures. This action is sometimes necessary if your device stops functioning properly, but note that if you want to keep any important data, you have to first back up this data to a memory card or other non-internal memory. For more information, see Backing up and restoring content .

    If your device fails to power on or you want to reset your device’s software, you can use PC Companion or Bridge for Mac to repair your device. For more information on using PC Companion or Bridge for Mac, see Computer tools.

    Note

    Your device may fail to restart if the battery level is low. Connect your device to a charger and try restarting again.

    Note

    If you are using a device with multiple users, you may need to log in as the owner, that is, the primary user, to reset your device to its original factory settings.

    To force your device to restart

    1. Press and hold down the power key Icn sony key and power k90.
    2. In the menu that opens, tap Restart. The device restarts automatically.

    To force the device to shut down

    Ill sony 12on force restart
    1. Remove the SIM and memory card cover.
    2. Using the tip of a pen or a similar object, press and hold down the OFF button for about 10 seconds.
    3. After your device emits a series of three quick vibrations, release the OFF button. The device turns off automatically.

    Note

    Do not use overly sharp objects that could damage the OFF button.

    To perform a factory data reset

    Note

    To avoid permanent damage to your device, do not restart your device while a reset procedure is underway.

    1. Before you start, make sure to back up any important data that is saved on the internal memory of your device to a memory card or other non-internal memory.
    2. From your Home screen, tap Application screen icon in Sony Smartphones.
    3. Find and tap Settings > Backup & reset > Factory data reset.
    4. To delete information such as music and pictures from your internal storage, mark the relevant checkbox.
    5. Tap Reset phone.
    6. If required, draw your screen unlock pattern or enter your screen unlock password or PIN to continue.
    7. To confirm, tap Erase everything.

    Note

    Your device does not revert to an earlier software version of Android™ even if you perform a factory data reset.

    Tip

    If you forget your screen unlock password, PIN or pattern in step 6, you can use the device repair feature in PC Companion or Sony Bridge for Mac to erase the security layer. By running the repair feature, you are reinstalling software for your device and you may lose some personal data in the process.

    To reinstall the device software using PC Companion

    1. Make sure that PC Companion is installed on your PC.
    2. Open the PC Companion application on the PC, then, under Support Zone, click Start.
    3. Under Phone / Tablet Software Update, click Start .
    4. Using the micro USB cable that came with your device, connect the device to your PC and then click repair my phone / tablet.
    5. Follow the instructions that appear on the screen to reinstall the software and complete the repair.

    To reinstall the device software using the Sony Bridge for Mac application

    1. Make sure that Sony Bridge for Mac is installed on the Mac computer.
    2. Open the Sony Bridge for Mac application and using the micro USB cable that came with your device, connect the device to your Mac computer.
    3. Click Xperia™ > Repair Xperia™ device > Continue.
    4. Follow the instructions that appear on the screen to reinstall the software and complete the repair.
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    On your Xperia™ device, go to Settings > About phone/tablet > Model number
    FindCreated with Sketch.
    On your Xperia™ device, go to Settings > About phone/tablet > Model number