Huge Network and Voice quality issues with Xperia T2 Ultra Dual

Same problem here after one month.
Voice cracking can't hear other party while having full signal strength.

Hi @Mayur9 Go to Call settings -> General -> and disable the "Slow talk option" if it is enabled. If the issue persists, boot your device in Safe mode to check what happens: http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008 Also I suggest you to first run a backup of the device information like this: http://talk.sonymobile.com/t5/FAQ/Backup-amp-Transfer/m-p/407253#U407253 Try performing a system repair using PC Companion: http://support.sonymobile.com/gb/tools/pc-companion/ This will factory reset your phone and erase all data. You might need tocharge your device for about 1-2 hours before so the device has at least 80% battery. Make sure the device is not connected to computer or laptop and turned off (sometimes you have to press power button and volume up until the device vibrates 3 times or on some devices you have to press the small button near the SIM tray or on the back of the device). Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the on screen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process. If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP. I hope can be useful. I'm at disposal for any question. Best Regards,

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