[micvaldo]

Hello,
I am use windowsphone 2 years from now and i upgrade my 520 to 830 and what a differnce!I was so happy with phone but after 5 days my battery drain fast. I set all settings for best battery performance for battery and i didn't help with battery saver on only 1 day then i do hard reset and install all apps again and all settings same and my battery was 1 day 20 h and its not just number i couldn't waste my battery in end of day battery was 70% and again after 2 days all start back again battery is terrible like used phone and i have this phone 10 days. Not only battery is problem my back button wont work in many apps it will work again if i use slider then press it again. My question is should i be worried about this or you guys have\had same problem? I want my phone back again i love windows so much but i need help :(

[ven07]

Since you have the phone for only 10 days it could be that the battery still needs calibrating. Use the phone until the battery is around 5% then charge it full again.. Do this for a few days (I do it for a week)

If the back button isn't working, the best thing to do is bring it back to the store, so they can check and if necessary, replace the device :)