Sony Xperia T2 Ultra User Manual

Connect your phone to a wall charger > press and hold power & volume up for 10 seconds > let it charge for an hour or 2. Let me know how it goes.

Thanks, with above solution my phone has started functioning in 10 seconds.

Signal problem

Visit the store where you bought the phone or simply visit a Sony service center in your area.

Unfortunately, it looks like guest mode is not available on Sony Xperia T2 Ultra.

Camera not working just black black plz help

Check your phone, you're probably receiving notifications.

Unfortunately, a broken screen is not covered by the phone warranty. You can contact Sony directly for further information on where you can bring or send your phone for repair.

To perform a factory data reset: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. Open Settings> Backup & reset> Factory data reset. 3. To delete information, such as pictures and music, from your internal storage, mark the Erase internal storage checkbox. 4. Tap Reset phone. 5. To confirm, tap Erase everything.Hope that helps.