Hy how are you all I have fast charging problem after update 7.0 now battty talking upto 1:30 for 100% charge any fix any suggestion for this problem 57 min need for 26,%

HyHow are you all? My iPhone 7 plus didn't receive whatsapp massage when i lock my phone but when i open whatsapp application i receive massage but slow not fast any suggestions any fix for this problem??? Thanks

My note 7 still in problem after exchange can i return it and get other one like iPhone etc l??

My note 7 going heatup and held after exchange what i do now have any solution??? 