Why Does My iPhone Keeps Restarting? And How to Fix It

When the iPhone keeps restarting over and over again, the whole iOS experience seems to get stuck in a boot loop. Been there, done that, I can feel the agony that you may be going through right now. Enough of the random boot loop, it’s time to look for the fixes to take control of the unexpected rebooting of the iPhone.

Why Does My iPhone Keep Restarting Itself?

From what I have experienced, a software bug is often behind the random rebooting of the iPhone. But that doesn’t mean other culprits like problematic apps, nasty drops or cluttered storage are less responsible for the chaos. Not just that, third-party certifications installed by tricking iOS devices and faulty chargers that often cause the iPhone to restart itself while charging are also usual suspects.

What to Do If Your iPhone Keeps Restarting?

Now that you know what could be behind the issue, I guess you may have already started asking: What to do if the iPhone keeps restarting time and time again? Well, look no further than these solutions as they have you fully covered.

  1. Force Restart Your iPhone
  2. Update Software on Your iPhone
  3. Remove the SIM Card and Reinsert It
  4. Determine If an App is Causing Your iPhone to Restart
  5. Delete All The Outdated Apps
  6. Update All Apps
  7. Clean Up Your iPhone
  8. Reset All Settings
  9. Check for a Hardware Problem
  10. Restore Your iPhone As New

1. Force Restart Your iPhone

Once in a while, a random glitch tends to sneak in and begins to cause problems. And when that happens, a hard reset comes to the rescue more often than not. So, if your iPhone keeps restarting the loop, the first thing you should do to get rid of the problem is to go for the force restart.

2. Update Software On Your iPhone

Has your iPhone started to reboot repeatedly after the iOS 13 update? If yes, this issue could very well be due to a software bug. And the right way to troubleshoot it is to go for the software update. Open SettingsGeneralSoftware Update. Now, follow the usual process to download and install the software update.

Software Update on iPhone

3. Remove the SIM Card and Reinsert It

Though not many of you may believe, iPhones tend to get stuck into the restarting loop if the device’s connection to the wireless carrier is facing a problem. Thankfully, one of the easiest and reliable ways to fix this connection issue is just by removing the SIM card and putting it back inside.

First off, shut down the iPhone. After that, use the ejector tool, which comes with the iPhone in the box, to pop out the SIM tray and then remove the SIM card. After that, wait for some time and then reinsert the SIM.

4. Determine If an App is Causing Your iPhone to Restart

If the problem continues even after the software update, track down the problematic apps and remove them. So, how do you figure out which apps are behind this issue?

Well, iOS comes with a feature called Analytics that works effectively in diagnosing issues. After a thorough test, it digs out the problematic areas, making it a little easier for you to find out the culprits.

Go to SettingsPrivacyAnalytics & ImprovementsAnalytics Data.

View Analytics Data on iPhone

Now, scroll through the entire list and spot the apps that might have been listed repeatedly. Once you have discovered those apps, removing them from your device could solve the issue.

Delete analytics data on iPhone

Delete All The Outdated Apps

Outdated apps tend to create a lot of problems. They may not only cause your iPhone to crash unexpectedly but also affect the overall performance of the device. So, if your device has some apps that haven’t received updates for a long time, make sure to wipe them out.

On iOS 13 or Later

In iOS 13, there are multiple ways to delete an app. One of the easiest ways is to touch and hold an app and then tap on the Delete App option in the popup that appears. After that, tap on Delete again to confirm the action.

Delete App on iPhone in iOS 13

On iOS 12 or Earlier

Simply touch and hold an app and then hit the “X” button. Next, hit the Delete button in the popup menu to finish.

5. Update All Apps

Most apps receive updates frequently for both performance improvements and bug fixes. And the best way to keep all the apps updated is to take advantage of the “Automatic Updates” feature (Settings → iTunes & App Store → App Updates).

Update All Apps on iPhone

You can also update apps manually as and when you want. To get it done, head into App Store → Your Profile → Hit Update All to update all the apps installed on your iPhone at one go.

Update App from App Store in iOS 13

6. Clean Up Your iPhone

If your iPhone still keeps restarting the Apple logo, cleaning up the entire device may help in fixing the problem. Corrupt files or cluttered storage could be at the heart of this issue. But before going for the marathon cleanup, do not forget to back up all of your important files.

To help you track down all the storage hogging files and delete them with ease, we have made a complete guide. So, hop onto it to remove unnecessary files carefully.

Just in case, you find the process of removing useless files manually a tedious affair, check out these storage cleaning apps for iPhone.

Side Note:

  • While I can’t say with 100% certainty, clearing out RAM could help in taking control of this problem
  • Besides, I would also recommend you delete any third-party certifications which you may have installed on your device. Go to Settings app → General → Profile & Device Management and then delete the certificates

7. Reset All Settings

Now, we are going to wipe out all the existing settings and put the device to the default state. Yeah, this solution sounds radical, but it often proves to be handy in getting rid of common problems. So, let’s hope that it’s able to resolve the issue. Head into the Settings app on your iPhone → GeneralResetReset All Settings.

Reset All Settings on iPhone

8. Check for a Hardware Problem

Repeated drops also cause the iPhone to get stuck in the boot loop. If your device had recently met with a nasty drop, there could be a hardware problem.

Besides, the worn-out battery may also be behind this problem. If it’s found to be the culprit, you can get rid of the issue just by replacing the faulty/worn-out battery.

If your iPhone keeps restarting while charging, make sure the Lightning port is clean. The pocket lint, dirt, and debris may have piled up over time and maybe preventing the smartphone from charging. So, clean the lint and gunk stuck in the charging port and then try to charge the device. If the problem doesn’t stop, try to charge your device with another cable.

Though third-party services charge a lot less, Apple Support is more reliable. So, if you don’t mind spending a few extra dollars in favor of a trusted solution, contact Apple for help.

9. Restore Your iPhone As New

Restoring iPhone as new is something that I often save for the last as it’s known as the last resort as far as fixing software problems are concerned. As it has a very good record of resolving stubborn issues like Wi-Fi and Bluetooth, I hope it succeeds in troubleshooting this problem as well.

But before going ahead with the following steps, don’t forget to back up all of your data as it will wipe out everything that your device consists of. So, get it done without any fail.

  1. Connect your iPhone to your PC and launch iTunes/Finder (in macOS Catalina)
  2. Now, locate your iPhone. After that, click on Restore iPhone and confirm.
    Restore iPhone and iPad using iTunes
  3. Once it has been restored, set up the device as usual. And while setting up the device, restore the device from the previous iCloud/iTunes/Finder backup

Now, check out if the problem is gone. If it has, you are good to go! But if it’s still there, try to restore your iPhone in Recovery Mode. To get through the steps problem, head over to this detailed guide.

Wrapping Up…

So long as there is a software issue, your iPhone would come back to normal after software update and clean restore. In the event of a hardware problem, contacting Apple Support is always the right way to go for a reliable solution. Of course, Apple charges a lot more than third-party services, but when it comes to reliability, the first party solution always has the upper hand.

More Troubleshooting Guides To Rescue You:

Have you succeeded in fixing your iPhone that keeps rebooting itself? If yes, toss up your thoughts in the comments.

iPhone Keeps Restarting

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Dhvanesh Adhiyahttps://www.igeeksblog.com
The founder of iGeeksBlog, Dhvanesh, is an Apple aficionado, who cannot stand even a slight innuendo about Apple products. He dons the cap of editor-in-chief to make sure that articles match the quality standard before they are published.


  1. hello , I have an Iphone 5c . everything was working perfectly fine until today it when to the lock screen and then when I try to unlock it , it just restarts it self … I tried the lock and home button but nothing happen . What can I do ??????

  2. hi , i have reset problem with my iphone5s , because when it was resetting i suddenly turned off the iphone .so i wanna reset again but its not processing ,how i can fix it pls

  3. I would like to share my similar but weird situation. My iPhone 6 Plus has the same problem and every once a while it shuts down and restarts by itself since day 1 I bought the brand new phone. At first it didn’t bother me too much until one day I was on an important conference call and the phone did it again! What is really interesting is that the conference call kept going after the phone restarted, my colleague on the line said they were talking to me but I had no response for a minute, then they heard I was shouting for a charger so they knew I was still there. How strange is that??? I saw with my eyes that the phone restarted with the apple logo showing up but maybe it was just the screen shutting off or something? Anyone has any clue? Also my 1 year warranty is about to end on 10/26, I just contacted Apple today for the first time for this issue, Apple told me to reset my phone. I asked her what happens if the problem remains and I’m running out of my time to test it out, she said we will look at other options to fix it but after the warranty expires I may have to pay for the service :-(

  4. I have an iphone 5. Its 2nd hand from my mum and ive only used for 1 dAY… I get to school and I put data on and it reboots itself. hours past and now it turns on then I don’t even have 1 second to do anything to fix it and then reboots again and again and again.. literally as soon as it turns on it turns off again… HELP ASAP!!!!!!

  5. What the F is this Apple. My Iphone 5 keeps on restarting. i have changed my battery but still having the same problem. i do not know what to do now, i am really pissed off by Apple Co. i might switch to Samsung.

    • As they said buddy Apple is not Android… Android is 100 times more better than ios. Why ? Because The way i see it… iphone is for slaves. And Android is for people that can use their heads. aPPLE IS NOT FLEXIBLE AND WILL HOLD YOU TO THEIR LIMITS aND MOST OF YOU WILL DIE NOT KNOWING YOU EVER BEEN LIMITED bY APPLE. sAMSUNG IS ON THE OTHER SIDE ABLE TO DO WHAT APPLE DOES AND MUCH MORE. BUY ITS ONLY FOR THOES THAT HAS A BRAIN IN THEIR SKULL AND KNOWS HOW TO USE IT.

  6. I have this problem before. My iPhone 5 restart randomly. Its battery bar does not change even I charge it or use it. The bar will show either 55%, 2% or etc and it’s not changing until the phone is restart. But, finally I got it fixed. I search on many website how to fix the problem. Some said that I need to change my battery, restore and do hard reset. I tried everything but it does not help at all. Actually, the battery and software are in good condition. The problem is the IC, capacitor or transistor inside. These are the steps that I do to fix my phone :

    1. I used the phone over and over, even it restart by itself everytime. I used it until there is no battery left. At that time you will not be able to start the phone at all because the battery is 0%, even if it not shown correctly on the screen. (It will stuck at apple logo and off)
    2. Charge the phone about 1 hour. But DO NOT switch on the phone yet. Wait until one hour. Then switch on the phone.
    3. Now your phone will turn to normal, but the battery life will become weaker than before. At least, it is not broken.
    *note: make sure you use the original charger and cable that you get from apple store.

    Now my phone are doing fine. Hope this method can help you fix your phone. Goodluck.

  7. i have and iphone 5 with ios 8.4 and every time i unlock the screen, it shows diffferent colours and decides to reboot, this have been happening for a while now

  8. This thing seems to be constantly trying to access the cellular network(in a dead zone) and buffer overflows and reboots. Rinse repeat. There is a bug in the wireless settings or driver being used for this POS phone. And F You Apple. I’m glad Steve’s dead.

  9. My iPhone 5s fell, it went off, i guess the battery got disconnected, took it in for repair, now it keeps on restarting, displaying apple log and then goes to restore mode, but when i connect it to itunes to restore and update, it will load the software halfway and then restart again. what must I do?

  10. ‘Turning OFF and then ON cellular data and 4G’ worked for me. Thank you for the tip. Mine is iPhone 4S with iOS 8.3. 4S kept rebooting while charging on the power adapter, and never came to full 100% charge on the PC/USB charge. Hard to believe that a simple cellular data OFF & ON would work, but it does.

    • Hi, did your iPhone 4s keep restarting while charging?( every minutes ) Mine 4s after I downloaded a game name: Tower Of Sav… it keep restart every minutes…help me pls

    • Same configuration. The hack to turn off and on the mobile data seems to work with my iPhone 4S as well. For the first night the phone didn’t boot any more by itself. I also turned off the possibility to use mobile data for some selected apps.
      Let’s see if things stay the same…

  11. Someone fixed my power button but after that my iPhone 5 restart itself ,before restart the screen turns like gray and turns off then on. and show apple icon .

  12. My iPhone 5s is only about 7 months old. Now all the sudden its restarting. I tried everything and nothing worked. I Need help. It blue screens for two seconds then restarts.

  13. My 5s fell into water and when I put it to charge, the apple sign flashes on for a few seconds and then turns off. It repeats this and apparently gets no charge. When I hold down the home button and lock button, it says I should plug it in and connect to iTunes. But I CAN’T CONNECT IT TO ITUNES CAUSE IT KEEPS SHUTTING OFF. Help!!

  14. i have an iphone 5 and had no problems with resetting itself until i upgraded to ios 8. Then all of the sudden it resets itself at least 5 times a day. Then i had to do a full restore and work fine. Then 8.1 comes and i download that, it does it again. WTF APPLE!!!. I thought your os is supposed to be stable and now with ios 8 that is not the case. I am seriously considering switching to android.

  15. hello , I have an iphone 4s , and always worked perfectly … until I upgrade to the 8 ips … since then , the iphone is always restarting … I do not know what to do ! I called the assistance they told me to do the restore as new, and did nothing , all the same !
    I know that the my phone was so well, before updating to ios8 , I need to downgrade to ios7 quickly !!!!!

  16. I had no issues until I updated iOS 8. Now my phone stays on the start up screen with the apple. I’ve done everything possible. Grrrr tempted to buy a galaxy.

  17. My phone restarted it’s self well over 30 times in one day I was going crazy and couldn’t find any solutions. Apple Store couldn’t fit me in for a few days & none of the above things worked for me so I just rest the phone to factory settings and restored my back up & so far so good..

  18. Have the same problem, None of the solutions worked for me. Went onto the Apple site and clicked the link for support direct to my phone. Click on the message sent to your phones e-mail and it sends a diagnostic to Apple. within seconds I received a message telling me the battery is the issue. New battery required, hope this helps.

  19. My iPhone 4 is jailbroken, has no memory left, and wont stop restarting?! I’ve tried the master reset with the lock button and the back button. It’s not letting me sync with ITunes, because there’s not enough space. like I’m just out of opinions

  20. When my iPhone 4s randomly started rebooting every 2 seconds, simply holding down the lock button and home button set it straight, and then i plugged it back into the charger. I have no idea what caused it, but i thought maybe it was a connection issue?

  21. I know this discussion is getting old, but just want to say that turning cellular data off then back on fixed it for me. Settings > Cellular > Cellular Data — switch to off, then switch back to on. That’s it. I can’t believe it, but it worked. I was minutes from leaving work to go to the Apple store. I don’t know how this makes any sense at all, but thank you.

  22. Help !! Iphone5s cannot turn on . I already hold power off/on and home button about 10second . But still not worker . Actually my battery had a problem . Two day ago i bought new battery . Today iphone turn of automatic . How to do? Pleasee help :’) thanks

  23. Someone fixed my power button but after that my iPhone 5 restart every 2 minutes before restart the screen turns like gray and turns off then on. So I shake my iPhone and I heard like a cable is disconnected, do you think that’s the reason? And what cable do you think it could be? Thank you

  24. Please help me, my iphone 3gs won’t turn all the way on. It starts to boot up, shows the apple logo, then the logo dissapears, but it still on but just with a black screen, then it turns off with no screen. it keeps repeating this forever untill the battery dies, then i charge it enough and it does the same thing. all over again.

  25. This is interesting. When intermittent iPhone faults like this come up, people also come up with the most bizarre fixes. Turning cellular on and off has no relation to this and can have no effect at all on what is undoubtedly a hardware problem. But you do the “fix”, look at the phone, and – hey! It’s not doing it ! But you forget it was an intermittent problem, and whilst you’re staring at your phone after the fix and it’s not doing it, you convince yourself that this has fixed it. I’ve seen this sort of thing time and time again. You could convince people that taking a photo would “cure” it. Best guess of the reality here is that it’s a very slightly loose battery, and a small thump causes the mini-reboot.

  26. do-it-yourself iPhone repair is quick, inexpensive, and isn’t as difficult as you may think! Whether you need iPhone 4S screen repair, dropped your iPhone in a pool, or, shattered the screen into tiny little pieces, there is an iPhone repair kit for you!

  27. Turning off Cell Data worked. While it was off I went into Numbers changed a couple things then turned on cellular data but left LTE off then made more changes and then turn LTE on. I figure that mixes it up with another solution I saw on a different forum.

    • hi can you hepl me please…it seems like you solve your problem with your phone by switching on/off cellular data…but you you be more specific please. What changes did you do after you left the cellular data off?

      • I think he just turned off cellular, then went and made some changes to
        the Numbers app. It doesn’t really matter. You can just turn off
        cellular, and then turn it on but turn off 3G/LTE.. after sometime, turn
        it on.


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