HT203977: How to back up your iPhone, iPad, and iPod touch

Learn about How to back up your iPhone, iPad, and iPod touch
geoff5732
Level 1 (4 points)
iPhone

Q: IPhone turns itself off when power gets to 20%

My iPhone 6 turns itself off when or around 20% causing many problems and won't turn on until plugged in to Recharge?

iPhone 6, iOS 9.3.2

Posted on Jul 15, 2016 1:01 AM

Close
geoff5732

Q: IPhone turns itself off when power gets to 20%

  • All replies
  • Helpful answers

  • by judysings,

    judysings judysings Jul 15, 2016 1:31 PM in response to geoff5732
    Community Specialists
    Jul 15, 2016 1:31 PM in response to geoff5732

    Hi there, geoff5732!

    It looks like your iPhone 6 is causing you some issues right now turning off around 20% battery life and not restarting until it's being charged. I'd not want to rely on being close to a power source with my iPhone so I'll be glad to help!

    Since this can be either a hardware or software issue, below are the steps to help you determine which it is.

    1. Back up your iOS device -- I'll be having you completely erase your iPhone so I highly recommend having a recent backup to keep your personal information safe.

    2. Restore iOS device to factory settings -- Once you're sure your data is safe, you'll restore your iPhone using iTunes installed on a computer. Using your iPhone's settings only removes your personal information and we need to get a fresh, clean copy of the iOS installed.

    3. Test the issue -- This time through, select "Set up as a new iPhone" when you're asked how you want to set yours up again. Log into iTunes & App Store and iCloud, and sync some of your information back. Test how your iPhone behaves once it reaches 20% again. If it doesn't shut down, follow the next step.

    ​4. Restore your iOS with a backup -- Follow this article to place your personal information back on your phone.

     

    Thanks for use Apple Support Communities!

  • by Barry Hemphill,

    Barry Hemphill Barry Hemphill Jul 15, 2016 2:19 PM in response to geoff5732
    Level 8 (37,989 points)
    Peripherals
    Jul 15, 2016 2:19 PM in response to geoff5732

    I would let it discharge completely and then charge it until it is full.

     

    First, however, I would reset the device by holding the power and home keys down until the Apple logo appears. If that corrects the problem, nothing else needs to be done.

     

    Barry

  • by pugmahorn,

    pugmahorn pugmahorn Jul 15, 2016 3:21 PM in response to geoff5732
    Level 1 (9 points)
    iTunes
    Jul 15, 2016 3:21 PM in response to geoff5732

    It's your battery. I've had this happen on several iPhones that I've passed on to my kids. Once the battery gets below 30%, it's completely unpredicatable as to whether it will last for five seconds or two hours. Make an appointment with the genius bar at your apple store.