How to fix Messages app that constantly freezes or crashes on an iPhone 6s Plus? [Troubleshooting Guide]

A buggy software update can cause your iPhone to reboot by itself or certain apps to crash. Every app can be susceptible to this type of problems. But it just becomes so annoying when the app that gets afflicted is the one you used more often. This is what happened to some iPhone 6s Plus users who have the Messages app facing the same problem on constant crashes after installing an iOS update. It has also occurred to some people who haven’t had installed any update to iOS but it likely occurred due to some malware or from iOS exploits. Read on to find out how these factors can trigger your iPhone Messages app to become unstable or completely dysfunctional. Should you wish to troubleshoot the problem at hand, a step-by-step guide is also offered below so you can always refer to the steps whenever needed.

But before anything else, if you have a different issue with your device, visit the troubleshooting page we’ve setup for the iPhone 6s Plus. We list down every problem we address each week in that page so try to see if we’ve already addressed your concern before. If we did, try to use the solutions we suggested and if they won’t work, then you may contact us by filling up this form.

Factors that can cause the Messages app to crash or get frozen on your iPhone 6s Plus

As mentioned earlier, faulty updates, iOS exploits and apps glitches are among the common culprits that can trigger an app to misbehave, become unstable, or worst, completely dysfunctional. It shouldn’t be a big deal with some other apps, but considering that it is the Messages app that you couldn’t get to work, it’s definitely an issue for fixing.

It is normal for a new software update to not work compliment with your iPhone’s current setup and settings configuration. As a matter of fact, you can see a lot of post-update issues populating online after a major update implementation. It happens to Android and iOS devices though.

Aside from faulty updates, an iOS exploit like when someone sent you a text message containing some bugs or malware. Often times, these messages contains some URL or links that will route you to a separate online page when clicked. So beware of those types of messages if ever you get one. Never click on the embedded links. In this case, you can use Siri app instead to reply to the text message with malicious text message. To do so, open up Siri then say View messages or Read unread text messages. If Siri asks if you would like to reply to the text, then just say Yes.

Memory problems can also trigger similar symptoms to occur on the device. Should this be the case, you may need to delete some old messages and conversations that are no longer used. Doing so will free up some space of the Messages app, thus allowing it to process more new messages and threads. Or you can also manage your device internal storage and free up some space if necessary.

How to get your Messages app back to work as intended on your iPhone 6s Plus?

Consider the following methods when troubleshooting your iPhone Messages app that constantly freezes or crashes. If the first method fails to fix the problem, then proceed with the next. For as long as you are certain and have ruled out the possibility of hardware damage causing the problem to occur, your chance of getting it fixed with any of these subsequent procedures is higher.

First method: Reboot your iPhone 6s Plus (soft reset)

A simple reboot might be the only thing you need to get the Messages app working properly again. Should the problem is triggered by minor glitches on the app or device itself, a soft reset will be able to fix it. Give it another try then see what happens.

  • To perform a soft reset on your iPhone 6s Plus, press and hold the Power button for at least 10 seconds. When the Slide to Power Off screen appears, drag the slider to turn off your iPhone completely. After 30 seconds, press the Power button again until the Apple logo appears. Your iPhone then boots up.

Alternatively, you can force your iPhone to restart if the problem causes the app or device itself to become unresponsive.

  • To force restart, press and hold the Power and Home button simultaneously for about 10 seconds then release both buttons when the Apple logo appears.

Wait until your iPhone boots up completely then try to open the Messages app again and see if it’s working fine now.

Second method: Delete Message Threads

If you can, try to access and delete message threads that contain malicious text messages or links. Also do the same with other messages containing file attachments.

To delete all old messages from your iPhone 6s Plus, follow these steps:

  • Tap Settings from the Home screen.
  • Scroll down to and tap Messages to open the app.
  • Navigate to the Message History section then tap on the option that says Keep Messages. Doing so will prompt you will three options to choose from including b, 1 year, and Forever. Select the first or second option.
  • Confirm the changes you’ve made by tapping the Delete button.

If you choose the 30-day option, it will delete the majority of messages on your iPhone, thus gives you a substantial storage savings.

An alternative method to do this is by opening the Messages app, tap Edit, select a number of conversations you want to delete, then tap Delete to confirm action.

Third method: Optimized internal storage on your iPhone 6s Plus

Check your iPhone’s internal storage status and make sure it still has enough space to allocate new apps processes and requests.

  • If necessary, navigate to your iPhone Settings-> General-> Device Storage. The following menus might contain some recommendation for optimizing your device storage. Also try to review the list of apps and how much storage each of them consumes. Tap an app’s name to view more information about its storage.

Alternatively you can use iTunes to check and clear up some space of your iPhone storage. Here’s how:

  • Connect your device to your computer.
  • Open iTunes on your computer.
  • Wait until your iPhone is recognized in iTunes.
  • Select your iPhone 6s Plus in iTunes devices. You will see a bar that indicates how much storage your iOS content uses divided by content type.
  • To view more details, move your mouse over a content type like Apps or Other.

Unlike Android devices, your iOS device automatically deletes cached files and temporary files when necessary. Thus you really don’t need to delete them per app manually.

Last resort: Factory reset your iPhone 6s Plus

It’s a tedious process and time-consuming but on the positive note you’ll likely to end up getting the underlying problem on the iPhone system resolved afterwards. But before you begin, make sure you backup your iPhone data using iCloud or iTunes for safekeeping. You may need to access some of your critical data in the future so just keep your backups ready and available. Once you’re done with the backup, you may proceed with the factory reset. You can factory reset your iPhone using the Settings menu.

  • To do so, go to Settings-> General-> Reset-> then select the option to Erase All Content & Settings. This will reset your iPhone to factory defaults. All your app data, photos and other information will be wiped out completely with one tap.

If you prefer to use iTunes to reset your iPhone 6s Plus and restore it to factory defaults, follow these steps:

  • Open iTunes on your computer. Be sure to use the latest version of iTunes software.
  • Connect your iPhone to the computer using the supplied USB cable.
  • If prompted, tap the option to Trust This Computer then follow the onscreen instructions to continue.
  • Select your iPhone 6s Plus from the devices in iTunes.
  • Navigate to the Summary section then click Restore [device].
  • Click Restore again to confirm. iTunes will then erase your device and installs the latest iOS software available.

Wait for your device to completely restore its factory settings. When it’s done, your iPhone reboots. By then you can set it up as new.

Seek More Help

While you may have the option to use another messaging app from third-party developers, it is still best to let Apple devs or your carrier know of the problem. They might as be able to further assist you in doing some advanced troubleshooting using some dedicated software on their end. That being said, contact Apple Support or your carrier if the problem persists and the Messages app still crashes or gets stuck on your iPhone 6s Plus. Escalating the problem is highly recommended if it occurs after an iOS update implementation. Doing so will let Apple devs know of the problem and at the same time develop a fix patch to address it.

Connect with us

We are always willing to help fix your problems with your Apple device. Browse through our existing troubleshooting posts or you may contact us directly by completing this form and hitting the Submit button. Make sure you provide all the necessary information about your phone and the problem so that it would be easier for us to help you.