Share your experience!
1.After update usb connection not working.I restarted both phone & pc many times.
2.Bluetooth also not working.
3.Phone vibrates at specific intervals.I have no clue why.
Bluetooth & usb only works ones in 20 times
PLZ PLZ HELP 
Try to reset the phone after the update. If it doesn't help, you should send in the phone to a service center for repair.
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