It's very frustrating. I tried resetting it, didn't work. My sound settings are all maxed, and I don't get any notificiations of calls or texts. Apps don't play sound, and neither will it work if I plug headphones in. Also, since the update, my battery life lasts maybe about 10 hours. It used to last a bit more than 24 hours.
i apoligize..it is important to report all issues with update..
If you are experiencing any difficulty completing the software update after downloading the OTA, contact Customer Care for further assistance.
T-Mobile also partners with the manufacturer to add fixes for reported software issues.
so i would call customer service..
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