I update to 7.0 after which my phone is behaving strange way.
1) My mobile speaker is not working after update 2) if I restart phone it won't switch on back pressing power button, volume up and down button no success. I need to again put charge even through battery is there and after charging for 2 hrs it will switch on 3) After mobile is switched on it showing date as Jan 01 , 1990 and it is wahtsapp is saying is not sync with calender and it will take 10 mins to sync with current time.
I did factory reset after which problem 2 and 3 go solved but still my speaker is not working..
