Q: iPhone keeps turning on and off.
"My phone is seriously messing up right now. For the last couple of hours it has been on the start up screen with the Apple logo on it. It will be on that for about 2 minutes then there will be a little circle (I think it's supposed to spin) on the apple for about another 2 minutes. Then it will turn off and back on and do the same thing. I've taken my SIM card out, tried to do a hard reset many times and it's the same thing every time. I don't know what I'm supposed to do. Someone please help me!" -- From Apple Forum
It seems that the problem of iPhone keeps restarting is very headachy and stubborn, even though you have tried to take out the SIM card or force reboot your iPhone, you could not get it back to normal. Generally speaking, the common reasons of iPhone keeps restarting include the faulty battery indicator, incompatible software and the app error on iPhone.
However, there are still several effective solutions to fix iPhone keeps turning off issue with ease in this article. Just read on to find out how.
As mentioned above, one of the possible cause to make iPhone keep rebooting is the the faulty battery indicator, which means your iPhone battery indicator has something problem and cannot correctly recognize the real battery life of iPhone. In this case, even though your iPhone has been already fully charged, it thinks it to be 0% power left on your device.
So to get rid of this problem, you can try to drain your iPhone battery to fix this problem. Here is how to do:
Step 1. Please do not charge your iPhone but drain out of the iPhone battery completely, like 0%. This is to make your iPhone switches off by itself due to insufficient power.
Step 2. When iPhone is shut down, please start to charge your iPhone until the battery is charged fully, say 100%. For better and faster charging, please use iPhone's original charger and the wall socket as well.
Step 3. After finishing charging, turn on iPhone and check if the problem is fixed.
Related: Solutions to Common iPhone Problems
If you are looking for an effective and secure way to fix iPhone keeps shutting down issue, you can directly skip to this part for the best solution. As mentioned above, that iPhone keeps switching off is because of faulty battery indicator, incompatible software and the app error on iPhone, which actually is some system problem on iPhone.
So to effectively fix iPhone keeps turning off issue, you can directly fix the the system problem with the help of a professional iPhone system doctor - iOS System Recovery. With it, you can easily and securely fix iPhone keeps turning off without data lost within a few clicks.
This tool supports to fix all types of system problem on iPhone, iPad and iPod, such as iPhone keeps turning off, iPhone blue/black/white/red screen of death, iPhone stuck on Apple logo, iPhone stuck on recovery mode, iPhone error 1/3/6/27/56 and etc. And it works well with all generations of iOS devices, including iPhone X/8 Plus/8/7 Plus/7/6s Plus/6s/SE, iPad mini, iPod touch and etc.
Below are the free trail of the software in Mac and Windows version, you might download it on your computer and then begin to fix your iPhone with the guide as below.
Here is how:
Step 1. Run the installed iOS System Recovery software on your computer, and link your iPhone to PC with a USB cable. Then switch to "More tool" > "iOS System Recovery" on the main interface of the program.
Step 2. The program will automatically detect your iPhone's problem, and show the possible errors on the interface like iPhone stuck on Verifying Update, iPhone stuck on Apple logo, Recovery mode, iPhone won't update, iPhone Error 3 and etc. Just click the "Start" option to move on.
Step 3. Finally, confirm your iPhone's information as prompted. If it is correct, hit the "Repair" button to begin the fixing process. If not, select the right one and click the "Repair" button to fix your iPhone keeps turning off issue.
To fix your iPhone, the program will download and install the latest software update on your iPhone after detecting your iPhone's current iOS version.
After finishing the whole process, your iPhone's problem will be fixed immediately. Now, just have a try of the software!
The DFU mode, known as Default Firmware Update mode, is also an optional way to fix iPhone keeps turning off. It is a way to fix iPhone by upgrading or downgrading iPhone operating system, however, please be aware that enabling DFU mode will erase all data and settings completely on your device. So before the process, please do make a backup of your iPhone in case of further use.
Here is how:
Step 1. Connect your iPhone to computer with a USB cable and launch iTunes. Please make sure you have downloaded and installed the latest iTunes on your computer.
Step 2. Then please turn off your iPhone. Just press and hold the Power button for a few seconds to bring out the "slide to power off" slide , and slide to power off your iPhone.
Step 3. Next please press and hold the Home button and Sleep/Wake (or Power) button at the time for 10 seconds.
Step 4. Then release the Power button but continue to press the Home button until a message appears on iTunes, stating that an iPhone in recovery mode has been detected.
Step 5. Then click Restore iPhone option on iTunes to restore your device to fix iPhone keeps turning off issue. Thus your iPhone will get back to normal immediately.
Note: For an iPhone X/8/8 Plus/7/7 Plus, please press the Volume Down button instead of the Home button.