hey guys, in summary, i think my 4s is having some battery calibration problem. started with batt % dropping rapidly to 1%, but managed to on itself after i charged it for abit. stayed at 1% for the entire day. so i'm pretty sure it's still holding charge, just not displaying the real charge. made the mistake of charging it to full, and trying to restore it. i believe my phone thinks it's on low on juice while holding a full charge, so what i have to do is to let the battery run down to say 80% and charge it so it'll boot up again. the problem is i have no idea how to drain the battery while it's off.. any one with any suggestion? will repeated restoring attempts do that? (the attempts ends with my phone showing me the low batt screen while it tries to restart after the restore..) thanks folks!