I have experience some problems with the phone, it's nothing to do with the hardware or the firmware, but rather the battery notification on the top right corner. The battery bar is not accurate at all, eg. I use to listen to music for about 4 hours straight, but then the in the next 12 hours, its still on full bar, but when i restart my phone, the battery drop straight to 4 bar, I'm just curious, is it the firmware that causing the inaccuracy, or the theme that I'm using? Has anyone encounter this before?

I believe thats our service providers problem.. happened few times during since hari raya.. calls disconnected halfway.. connection error.. request rejected etc etc.. Im using Celcom by the way..