How to Fix Apps Not Working, Stuck, or Crashing on iPhone 6s Plus

If apps on your iPhone 6s Plus are stuck on “Waiting,” keep crashing, won’t open, or show errors like “Slide to Update,” you’re definitely not alone. These common issues can hit any iPhone, and luckily, there are several ways you can fix them yourself. Here’s everything you can try to get your apps working properly again.

Force Close the Problematic App

Sometimes an app just needs a fresh start.

• Double-press the Home button or 3D Touch on the left side of the screen to open the app switcher.
• Find the app that’s misbehaving.
• Swipe up on the app’s preview to close it.
• Reopen the app and see if it works better.

Restart Your iPhone

A reboot can clear out temporary bugs that make apps misbehave.

• Hold down the Sleep/Wake button until you see the red power slider.
• Drag the slider to turn off your phone.
• After a few seconds, hold the Sleep/Wake button again to turn it back on.

Force Restart Your iPhone

If your iPhone or an app is completely frozen:

• Hold down the Sleep/Wake button and the Home button at the same time.
• Keep holding until you see the Apple logo, then let go.

Delete and Reinstall the App

If a specific app keeps crashing or won’t open:

• Tap and hold the app icon until it jiggles.
• Tap the X to delete it.
• Go to the App Store and reinstall it.

Note: You can’t delete built-in Apple apps.

Fix Apps Stuck on “Waiting” or “Slide to Update”

If you see apps stuck during install or update:

• Delete the stuck app as mentioned above.
• Reinstall it once you have a strong Wi-Fi connection.
• If the App Store is having server issues, you might need to wait and try again later.

You can also update apps through iTunes on your computer if the App Store is giving you trouble.

Free Up Storage Space

Low storage can make apps crash or fail to update.

• Check your storage under Settings → General → iPhone Storage.
• Delete unused apps, old messages, large videos, or move files to iCloud.

Restore a Previous iOS Backup

If problems started after a system update, restoring your iPhone to a previous backup might help:

• Connect your iPhone to a computer with iTunes.
• Choose Restore Backup and select a backup made before the issue started.

Be aware: this will overwrite your current data unless you back up first.

Update to the Latest iOS Version

Apple often fixes bugs with new updates.

• Go to Settings → General → Software Update.
• Download and install any available updates after backing up your device.

Factory Reset Your iPhone

If nothing else works, you might need to reset everything:

• Back up your important data first (via iCloud or iTunes).
• Sign out of iCloud:
  Settings → [Your Name] → Sign Out.
• To reset:
  Settings → General → Reset → Erase All Content and Settings.

Or do it through iTunes:

• Connect your iPhone to your computer.
• In iTunes, select your device and click Restore iPhone.

⚡ Important: Only do a factory reset as a last resort.