How To Calibrate Iphone 4s Battery. If your iPhone reboots constantly after the replacement you need to do a Hard Reset by holding down the Home- and Sleep-Button for about 10 seconds until the device restarts. If you want to check the battery usage open the Settings app tap on your name and go to General - Usage.
When we talk about calibrating a battery we mean charging it all the way to 100 then draining it down to zero. Had my iPad 2 since launch recalibrated maybe 4 times. Had my 4s since launch and Ive recalibrated maybe 2 times.
So I decided to clean up my iPhone and calibrate the batteryI have made an Keyno.
This should be accomplished with normal use but sometimes this may not be an option. So I decided to clean up my iPhone and calibrate the batteryI have made an Keyno. It is great to drain the battery if you can live without your device for several hours such as before sleeping. Replace the battery on your iPhone 4S.
