•As a last resort, remotely clear the internal and external memory of the device.
The my Xperia service may not be available in all countries/regions.
To activate the my Xperia service
1From your Home screen, tap 
.
2Find and tap Settings > Security > my Xperia > Activate.
3Mark the checkbox, then tap Accept.
To verify that the my Xperia service can locate your device, go to myxperia.sonymobile.com and sign in using the same Google™ account that you have set up on your device.
IMEI number
Every device has a unique IMEI (International Mobile Equipment Identity) number. You should keep a copy of this number. If your device is stolen, your network provider can use your IMEI number to stop the device from accessing the network in your country.
To view your IMEI number
1Detach the cover of the micro SIM card slot.
2Place a fingernail under the right or left edge of the label tray, then drag the tray outwards to view your IMEI number.
You can also open the phone dialer on your device and enter *#06# to view the IMEI number.
To view your IMEI number in the device
1From your Home screen, tap 
.
2Find and tap Settings > About phone > Status.
3Scroll to IMEI to view the IMEI number.
Battery and power management
Your device has an embedded battery. You can keep track of your battery consumption and see which applications are using the most power. You can also view an estimate of how much time is left before your battery runs out. The estimated battery time is based on your most recent usage pattern.
To make the battery last longer you can use one or more battery saving modes, which include STAMINA mode, Low battery mode,
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