Hallo, from when i upgrade jb at 4.1 with Pwnage Tool, i have issues with my battery. I notice usage time is the same of standby time (but i do not use the phone), and it's always a little bit hot. I deactivated all push applications (Mail, Notifications) but the problem remains. I did reboot but the issue remains. It seems something continue works when my iphone is in standby. I travel a lot for work, so battery it's for me a fundamental point. Is someone that can help me? Thank you very much!