1.I switched off my phone after charging it 100%, and when I switched it on after about 5-6 hours it had only 80% battery. I don't know how it lost 20% battery when it wasn't even on!
2.The mobile data both 2g/3g keeps ob activating itself from time to time even when I manually switch it off, I think maybe some app is doing this but I am not sure. I do not know how to check what is causing this problem, as this even causes massive battery drain.
I realised the data problem day before yesterday and the battety drain upon switch off yesterday, I can't help but think they are somehow connected but again I am not sure and don't know how to proceed to slove thr problem.
Any input would be extremely helpful, please reply soon as I am losing money over mobile data and am unable to carry my mobile away from charger for significant duration of time.