TusharSabbir
Hey, as many point it out, itās common for the device to drain battery a little more than normal after an update as it adapts to the new stuff. Just give it sometime and it will be back to normal
Norweg_1
Hey, as it is clearly pointed out at the starting of the post, all the rest of the features will be eventually rolled out for everyone, they are not releasing the entire 4.1 for the previous generations but have clearly promised it. So you will of course get all the features and the ones which will come forth for the next 2 years as like the brand promised. Just a little paitence is all it needs