Does your iPhone restart when entering passcode? We know how frustrating it could get, especially when you are trying to access something important. We are here to guide you out of this situation. By following our instructions, you will be able to fix iPhone restart when entering passcode issue.
Apple users can set a passcode on their devices to protect their data. This passcode is essential every time users restart their iOS devices or swipe up to unlock their devices. It is usually a 6-digit passcode. Recent developments allow users to use Touch ID that can read fingerprints or Face ID, which use face recognition instead of passcode.
You can fix iPhone restart when entering passcode by following the instructions given.
1.Update iOS
2.Update All apps
3.Delete unsecured apps
4.Replace SIM card
5.Reset iPhone
6.Do Hard Reset
7.Do DFU Restore
8.Hardware issues
9.Contact Apple Support
10.Restart iPhone
iPhone users have recently been facing issues while entering the passcode in their device. They have taken to social platforms to raise complaints that iPhone restart when entering passcode. This could be very inconvenient especially at times of emergencies while you want to use your iPhone immediately.
How To Fix iPhone Restart When Entering Passcode?
All iOS devices use a passcode to help users to protect their data. Users can set a Touch ID or Face ID depending on the device and its features. Your iPhone will require you to enter the correct passcode for the following:
· Turn on your device.
· When you restart your device.
· When you swipe up to or press the Home button to unlock your device.
· After a software update
· Change or to view the set passcode
· Format or rest your device to factory settings.
However, users have been facing issues where their iPhone restart when entering passcode. They have noticed that other factors like iOS updates or app updates trigger issues that lead to iPhone restart when entering passcode. They are looking for ways to fix iPhone restart when entering passcode. Let us try various ways in which you can fix it.
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Fix 1: Update iOS
Has it been a while since your last iOS update? Updating your iOS will fix any software related error in your device. This will automatically fix iPhone restart when entering passcode for you. You can check if you are operating on an updated version of iOS. If not you can update iOS by the following steps.

Step 1 – Open the Settings app.
Step 2 – Select General.
Step 3 – Click on Software Update.
Step 4 – Tap to Download and Install.
Fix 2: Update All Apps
All apps on your iPhone will be automatically updated. However, if your iPhone restart when entering passcode, it could be due to malware or malfunctions of certain installed apps. Using updated apps will allow developers to fix any bug or malware in the app that could pose security risk to your device. To fix your iPhone restart when entering passcode issue try updating all installed apps in your device.

Step 1 – Open the App Store.
Step 2 – Scroll down to the list of apps.
Step 3 – Click on Update All at the top right of the screen to update all the installed apps on your device.
Fix 3: Delete Unsecured Apps
Have you installed unsecured apps on your device that could cause your iPhone restart when entering passcode? Such apps could contain malware that messes up your device’s software and result in glitches and malfunctions. Removing such apps will solve the issue for you.

Step 1 – Long Press on the unsecured app to uninstall.
Step 2 – Click on Remove App in the pop-up window.
Step 3 – Tap to Remove the app.
Fix 4: Replace SIM Card

Do you notice that your iPhone restart when entering passcode issue has started recently, especially since you have changed your SIM card to an alternate service provider? It is possible that the issue of iPhone restart when entering passcode is most likely due to the recent changes made. Try to take out your SIM card and insert it back again to ensure that it is secure. If you are still not able to fix iPhone restart when entering passcode issue, you will have to replace your SIM card with an alternate service provider.
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Fix 5: Reset iPhone
Are you still not able to resolve iPhone restart when entering passcode? Then we have to try to reset your device to factory settings. Resetting your iPhone to factory settings will remove all your saved data and installed apps. This will also remove any malware that causes glitches and results in your iPhone restart when entering passcode.

Step 1 – Open Settings app.
Step 2 – Select General.
Step 3 – Click on Transfer or Reset iPhone.
Step 4 – Select Reset.
Step 5 – Tap to Reset All Settings.
Fix 6: Do Hard Reset
The Hard Reset should be your last resort. If you are not able to fix iPhone restart when entering passcode, by following every fix mentioned above, then you can hard reset your iPhone. A hard reset on your iPhone is like unplugging your personal computer. You will be able to temporarily solve the issue but then you will have to clean up the damage done.

You can do a hard reset by holding the power button and the Home button at the same time. Wait until your iPhone goes black and you see the Apple logo. The hard reset varies according to the type of device and iPhone model that you use. Doing a hard reset will fix iPhone restart when entering passcode issue for you.
Fix 7: Do DFU Restore

You can restore your iPhone to eliminate all possibilities of software issues that could cause iPhone restart when entering passcode. Restoring your iPhone will erase and reload iOS and automatically eliminate any software issues that result in iPhone restart when entering passcode. You can do a DFU restore by connecting your device to your personal computer. Once the DFU restore is complete you will be able to reload all your data from iCloud or iTunes backup.
Fix 8: Hardware Issues
Any damage done to the hardware of your device could result in iPhone restart when entering passcode. Check the charging port at the bottom of your iPhone for any external damages. Contact a nearby service center to help fix iPhone restart when entering passcode.
Fix 9: Contact Apple Support

Apple has an online support team that is formed especially for all users. You can contact them directly from the official website by submitting a query. They will reach you through your registered email id and guide you on how to fix iPhone restart when entering passcode.
Fix 10: Restart iPhone

Are you still not able to fix iPhone restart when entering passcode? Let us try to fix it by following the old text book method which will magically solve all your technical issues. Just restart your device. Turn it off and turn it back on again. This will remove glitch and bugs and automatically fix iPhone restart when entering passcode for you.
Related : How To Reset Apple ID Password On iPhone, iPad, Or Mac?
Wrap Up
Apple devices work efficiently due to constant software updates. iOS users are prone to use the latest version of apps and software, due to the automatic updates enabled on their devices. This will result in glitches and malfunctions of your device in case hindrance that result in faulty software updates. This will result in iPhone restart when entering passcode and many such errors. We hope that you have found your answer and were able to fix iPhone restart when entering passcode by following the instructions given in this article.
Frequently Asked Questions
Q1. Why Does iPhone Keep Restarting After Putting In Password?
Apple users have noticed that various factors like iOS updates or app updates trigger issues that lead to iPhone restart when entering passcode. Automatic updates enabled on the devices will result in glitches and malfunctions of your device in case hindrance during updates. This will result in faulty software updates and cause iPhone restart when entering passcode and many such errors.
Q2. Why Does My iPhone Randomly Restart?
Random restart of iPhones could be due to software errors or due to damages in the hardware of your device. If there is any damage in the hardware due to sudden impact which has affected the internal circuit of your device, it will result in your iPhone to restart at random times.
Q3. When Should I Enter Passcode In My iPhone?
Your iPhone will require you to enter the correct passcode for the following:
· Turn on your device.
· When you restart your device.
· When you swipe up to or press the Home button to unlock your device.
· After a software update
· Install iOS configuration
· Change or to view the set passcode
· Format or rest your device to factory settings.