Apple iPhone 6s Apps Problems: stuck on waiting status, slide to update error, random crashes, apps not working [Troubleshooting Guide]

Just like computer programs, mobile apps are also prone to having random malfunctions. Among that most common apps problems transpiring on the Apple iPhone 6s would include but not limited to being stuck on waiting status, update errors, random crashes and not responding apps. Any of these can happen due to either stock or third-party apps or both types of applications running on the iOS 10 or prior versions.

Emerging among the new common app error encountered by many iPhone 6s users after updating to iOS 10 is on the “Slide to Update” error prompt. This error usually surface when users attempted to update the application but then for some reasons the update won’t go through and the iPhone is stuck on this screen. What could have possibly caused any of these problems to occur on the iPhone 6s and what needs to be done in order to fix them? Read on to find out the answers to these questions.

But before we jump right into our troubleshooting, if you have other issues with your iPhone, make sure you drop by our troubleshooting page because we’ve already addressed a lot of issues reported by our readers. Find issues that are similar with yours and use the solutions we suggested. If they don’t work for you or if you need more help, fill up our iPhone problems questionnaire and give us more accurate information about your problem so we can give you the best solution.

Possible causes of apps problems and errors to occur on the iPhone 6s

There are many factors that can affect an app’s behaviour. These would include network problems, software bugs, and memory issues. Other cases of apps malfunctions have also been linked to hardware damage or faulty component on the iPhone.  Here’s how each of them caused an app to encounter errors or issues on your iPhone 6s:

Network problems

This is often the culprit especially for those who are having troubles updating an application on their iPhone. An active and stable network connection is among the key requisites when updating applications on your mobile phones. Without a stable connection, you’ll likely unable to complete the update as the process gets halted every time the network disconnects. When the network disconnects, the connection to the server is also disconnected, thus apps update or download gets interrupted. Server outages are also to blame in this case. You may not be able to download or update apps if the server is unavailable or having some trouble. Server or network problems need to be dealt with first so as to fix whatever problems or errors you may have encountered while attempting to use an application on your iPhone.

Software bugs

Software bugs can make an app corrupted and inoperable temporarily or permanently. Minor bugs often strike when implementing new settings or minor updates to an application. These are typical and usually be resolved by performing a soft reset on the device. However, this is not always the case especially if what you’re dealing with is a major flaw or tougher bugs affecting the iPhone system. There is a tendency that the bug is not only affecting the application but the entire iOS system instead. As a result, neither the app nor the iPhone gets to work as intended.

Memory issues

You can possibly put the blame on the iPhone’s memory especially if what you’re getting upon loading an application is an error prompt saying that the memory is full, insufficient memory, or other pertinent messages. Consider this among the culprits especially if you are fond of storing complex apps and contents on your device without checking on the current memory status. Gaming apps, media files, and even old messages utilize memory space of your iPhone’s overall internal storage. When your iPhone’s internal storage is running tight, performance issues instigate. Besides sluggish performance, other symptoms like apps crashing, random restarts, unresponsive or apps not working at all may as well surface.

Hardware damage

Not all apps issues are software-related. An app can become dysfunctional due to faulty hardware. Note that the software and hardware must work together. If something goes wrong with the hardware, there is a higher chance that the app associated with the faulty hardware to not work as intended. Unfortunately, device issues that are hardware-related often requires a tech service in order to get fixed. This denotes the need for you to take your iPhone to a service center or Apple genius bar for hardware assessment and/or repair.

Workarounds and generic solutions to apps problems on the iPhone 6s

Feel free to try any of the following methods to troubleshoot a pertinent problem or error you may encounter while using an app on the iPhone 6s. These methods are comprised of generic solutions and workarounds recommended by Apple Support and other iPhone users who were able to dealt with the same issues on the same device.

The best way to get started is to try to determine what is possibly causing the problem to occur on the application. Your chances of getting the underlying cause resolved is higher when using this approach. Answering the following questions might be helpful:


  • When did the problem start?
  • What changes have been made to the app or iPhone settings before the onset of the error or problem?


However, not everyone is able to determine the exact trigger using the above questions. If this the case on your end, then your next option is using the trial-and-error troubleshooting approach. You can refer to the recommended procedures below for that matter.

First method: Quit and restart the problematic app

Restart is often the key solution to fixing minor glitches on an application. Just like when a computer program is not working all of a sudden. Often times, the program works properly the second time you open it. This might also be the case with the iPhone app you are trying to use. If it refuses to work the first time you launch it, then quit the app and then open it again.

For starters, here’s how to quit and restart an app on the iPhone 6s:

  • Double-press the Home button or 3D Touch on the left side of your iPhone 6s. Doing so will bring up the fast app switcher.
  • Navigate to the app’s preview screen you want to quit.
  • Swipe up on the app’s preview screen then flick it up and off the screen to shut down.

The app should already be working as intended unless a more serious software issue is halting the normal operation of the app.

Second method: Reboot the iPhone

If restarting the app did not fix the problem and the app remains not working or stuck in waiting or update screen, try to reboot your iPhone next. It’s deemed the simplest yet most effective method used in troubleshooting various types of software issues affecting mobile devices. Otherwise, referred to as a soft reset, this method will fix minor glitches and rectifies any corrupted contents that might have triggered an app to become erratic.

Here’s the proper way to soft reset or reboot your iPhone 6s:

  • Press and hold the Sleep/Wake button until the red slider appears.
  • Drag the slider to power off your iPhone completely.
  • After a few seconds, press and hold the Sleep/Wake button again until the Apple logo appears.

Wait for your iPhone to complete the reboot process and when it does, try to open the app again and see what happens.

Alternatively, you can do a force restart on your iPhone 6s especially if the app error caused the phone to become unresponsive or freeze. Similar to a soft reset, no data will be affected in the process.


  • To force restart your iPhone 6s, press and hold the Sleep/Wake button and the Home button simultaneously for at least 10 seconds and then release both the buttons when the Apple logo appears. Doing so will allow your unresponsive iPhone to reboot.


Third method: Remove and reinstall the faulty application

This method is only applicable to iPhone apps that can be uninstalled, particularly third party apps. Most apps that are built-in or pre-installed don’t have the option to uninstall, leaving users to only disable the app if necessary. Third party applications however do provide users an option to uninstall them when needed.

You can delete or uninstall apps on the iPhone 6s using any of the following methods:


  • To delete or uninstall an app on the iPhone 6s, gently press the app icon, then tap the X that appears over the app.


Alternatively, you can access the iPhone Settings-> General-> Storage & iCloud Storage-> Storage-> Manage Storage menu.

Fourth method: Restore or update iOS

If the apps problem occurs after updating your iPhone 6s to the latest iOS 10 version, then you can try restoring to a previous backup. Otherwise, update your iPhone 6s to the latest iOS. ou can restore your iPhone 6s through iTunes considering that you have secured a backup to use. In this process, you  will need a computer that runs the latest version of iTunes program to get started.

Meanwhile, iOS update can be installed straight from your iPhone settings via OTA update. An active Wi-Fi connection will be necessary in this case.


  • To check for available software update for your iPhone, head over to Settings-> General-> About menu. A software update notification will show up if an update is available. If you wish to proceed right away, select the option to Download and Install, then follow the onscreen instructions to complete the iOS update.


If that is not your option, you can update your iPhone 6s iOS through iTunes as well. Just connect your iPhone to the computer, open iTunes, then select the option to Update instead of Restore.

Follow the rest of the onscreen instructions to complete the process.

Fifth method: Factory reset

A factory reset must only be considered a last resort. This is because all your information will be erased in the process. Bugs and software glitches are also likely to be removed thus leaving your iPhone free from glitches. Your iPhone will then be restored to its factory default settings.

Be sure to backup your iPhone before you begin, if you’re willing to go for a factory reset.

But before you begin, make sure you sign out of iCloud.


  • To do so, head over to Settings-> iCloud-> Sign Out. In other iOS versions, you will need to go to Settings-> [Your Name]-> Sign Out.


Signing out of iCloud before the reset will prevent your iPhone from being stuck in Activation Lock.

Once everything is set, follow these steps to do a factory reset via iPhone settings or iTunes.

Factory reset through iPhone settings:


  • Go to Settings-> General-> Reset-> Erase All Contents and Settings.


Wait for the factory reset to complete and your iPhone should then reboot.

Factory reset through iTunes:


  • Open iTunes on your computer (Mac or Windows). Make sure you are using the latest version of iTunes.
  • Connect your iPhone 6s to your computer using the supplied iPhone cable.
  • If prompted, enter the passcode for your device or select the option to Trust This Computer and then follow the onscreen instructions to continue.
  • Select your iPhone 6s from the list of devices recognized in iTunes.
  • Go to the Summary panel, then click Restore [your device name].
  • Click the Restore button again to confirm action.
  • Wait until iTunes completely erases and installs the latest iOS for your iPhone.


After your iPhone restores to factory settings, it will restart. By then, you can set it up as new.

Problem-specific Solutions

Solution to apps problem on “Slide to Update”

If you are dealing with apps update errors that are associated with network connectivity issues like being stuck on “waiting” status or “slide to update” error while attempting to download, install, or update an application, try to check your network connections. Errors like these usually occur due to unstable data network connectivity with 3G or LTE band.

A recommended solution is to delete the app that is currently installing or updating, and then re-install it from the App Store once the network is stable.


  • To delete a stuck app on your iPhone 6s, press the app until it jiggles and then tap the Delete or X icon.


You may need to try to access the App Store at a later time or when the server is up.

Or, you can use iTunes to update or install the app using the Sync option. Doing so will require a computer that runs the latest iTunes program.

Solution to a problem on Apps Stuck on Waiting Status

For apps that are stuck on waiting and cannot be deleted through iTunes, try to tap your iPhone from the sidebar, tap on the Apps tab. Doing so will open a list of apps. Tap to select the problematic app, tap Installed. Doing so will change it to Remove. Tap Remove to remove the app.

Solution to apps problems related to memory issues

For apps errors that are triggered or linked to memory problems, clearing up some space of your iPhone 6s internal storage can potentially offer fix.


  • To determine whether the problem is associated with insufficient memory on the iPhone 6s, head over to Settings-> General-> Usage menu. Once you get there, check and ensure that the Available storage is larger than the amount of storage Used.


In case you’ve ran out of options and the apps problem persists on your iPhone 6s, then you should consider contacting Apple support to escalate the problem and for further assistance. Post-update issues affecting certain apps functions must be escalated to Apple Support for them to consider it among other priority issues to fix in the next iOS update release.

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If you have other problems with your iOS device including iPhone 6s, you may visit our Troubleshooting Page or complete and submit this form to get further assistance from our support team. Just be sure to provide us with all necessary information, such as your iOS device model, as well as more details about the issue you have with your device. For example, when did the problem start to occur or what you did before the problem shows. This way, it would be easier for us to determine the main cause(s) and help you towards finding the best possible solution available.