Welcome to Apple iPhone news and Chat discussion forums. iPhone Discussions is dedicated to iPhone,Talk about iPhone modifications,software,reviews,Support, iPhone news , iphone mobile,iPhone OS and more...
My iphone is now ios 5.1.1. This is what happen with me today.
When my Battery used until 25% it automatically shutdown. I tried to turn it back on but it shows up that i have no battery so i recharge it and again when it reached 25% it shutdown. Please help me witth this. Thank You
Maxime is correct, except that 4 hours is sufficient if you use the wall charger, or 8 hours if you use a computer USB port.
You must do this exaclty, your iphones battery meter is not calibrated with that battery. To resolve this issue you must:
-Discharge the device fully to 0%
-Recharge it fully,even if your phone says 100% do not unplug it (because its inncacurate) leave it in the charger for at least 8 hours.
Doing this will recalibrate the battery capacity sensor in your iphone and fix the problem, this process is called a full charge cycle and should be done once a month for proper battery care and prolonged life
*Correction its at least 4 hours, thank you lawrence
I didnt do anything but it became normal again last night thanks
Reply something about why my iPhone 4S auto shutdown when 25 battery remain or Post a New Thread