How to Fix iOS 17.3 Update Problems

Apple’s latest iOS update, iOS 17.3, was released on January 10, 2024 with a host of new features and improvements. However, some users have reported experiencing issues after installing the update on their iPhone or iPad. Don’t worry – there are several troubleshooting steps you can take to fix most iOS 17.3 problems.

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The iOS 17.3 update brings new capabilities to FaceTime, improvements to iCloud and support for the new Unity game engine. It also contains important security updates.

However, the update has caused problems for some users, including issues with Bluetooth and Wi-Fi connectivity, decreased battery life, app crashes and freezes.

If you are facing problems after updating to iOS 17.3, this comprehensive guide will walk you through the most common issues and how to resolve them. With a few simple troubleshooting steps, you can get your iPhone or iPad working normally again.

How To Download the Update Again

If your iPhone or iPad is having problems after installing iOS 17.3, try deleting the update and downloading it again:

Step#1.Open the Settings app and tap General.

Step#2.Tap Software Update.

Step#3.Tap Delete Update. Confirm by tapping Delete Update again.

Step#4.Once the update has been deleted, tap Download and Install. This will re-download iOS 17.3 and install it from scratch.

Downloading the update again can help eliminate any errors or glitches from the initial download and installation. Make sure you have a stable Wi-Fi connection before downloading again.

How TO Update with iTunes

If re-downloading the update directly on your iOS device doesn’t fix the issues, try updating using iTunes on your computer instead.

Step#1.Connect your iPhone or iPad to your computer using the USB cable.

Step#2.Open iTunes. Make sure you have the latest version.

Step#3.Select your device in iTunes.

Step#4.Click Summary > Check for Update

Step#5.iTunes will now download and install the latest iOS update.

Updating via iTunes performs a “clean” install of the software, which can fix many common problems. iTunes also gives more verbose error messages, which can help diagnose any issues.

How To Restart Your Device

One of the simplest fixes for any iOS issues is to restart your device:

Step#1.On an iPhone 8 or later, press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Finally, press and hold the Side button until you see the Apple logo.

Step#2.On an iPhone 7 or earlier, press and hold the Sleep/Wake button until you see the “slide to power off” prompt. Drag the slider to turn off your phone. To turn it back on, hold the Sleep/Wake button again until you see the Apple logo.

Step#3.On an iPad, press and hold the Top button until the “slide to power off” prompt appears. Drag the slider to turn your iPad off. To turn it back on, hold the Top button again until you see the Apple logo.

Restarting your device essentially cleans out the memory and clears up any minor software glitches that could be causing problems. Make restarting your first step any time you have iOS issues.

How To Reset Network Settings

If you are experiencing Wi-Fi, Bluetooth or cellular data issues after installing iOS 17.3, try resetting your network settings:

Step#1.Go to Settings > General > Reset.

Step#2.Tap Reset Network Settings.

Step#3.Enter your passcode if prompted.

Step#4.Confirm that you want to reset network settings.

This will erase all network settings and restart them from scratch. It often resolves any software-related network problems introduced during a software update. You will have to rejoin Wi-Fi networks and re-pair Bluetooth devices after resetting.

How To Check Device Compatibility

It is possible your iPhone or iPad model is simply not fully compatible with iOS 17.3. Very old models in particular may experience significant issues running the latest iOS.

Check Apple’s iOS 17.3 compatibility page to see if your device is supported:

If your device is not listed as compatible, you may need to either live with the issues or consider upgrading your hardware to a newer iPhone or iPad model that can properly run iOS 17.3.

How To Free Up Storage Space

If your iPhone or iPad is almost out of free storage space, it may exhibit stability issues and crashes after updating to iOS 17.3.

Try freeing up more space:

  • Offload unused apps
  • Delete old messages, especially from iMessage
  • Move photos/videos to cloud storage or computer
  • Delete unused music, books or podcasts

Having at least 5GB – 10GB of available storage allows iOS to run smoothly. iOS can slow down and encounter errors without enough free space.

How To Ensure Stable Internet Connection

Download and installation issues are often caused by a poor or unstable internet connection. If you are installing an iOS update over cellular data, switch to a stable Wi-Fi network. Avoid public Wi-Fi hotspots, as they can drop connection during the install.

For the best results, use your home Wi-Fi network with strong signal strength. Disconnect any other devices using the network to maximize bandwidth. Moving closer to your wireless router can also improve signal reliability.

A stable, fast internet connection ensures complete download of the iOS update package and avoids any installation errors.

How To Check Battery Health

If your iPhone or iPad battery is worn out or damaged, updating to iOS 17.3 may trigger new battery-related problems.

To check your battery health:

  1. Go to Settings > Battery > Battery Health.
  2. The Maximum Capacity reading shows your battery’s overall condition. Anything under 80% may indicate a worn out battery.

You can also watch for telltale battery issues like your device powering off unexpectedly or needing frequent charging.

If you suspect your battery is failing, replacing the battery before updating can reduce potential issues. See Apple’s battery service options:

Troubleshooting Specific Issues

Beyond general troubleshooting, here are some solutions for specific iOS 17.3 problems users are reporting:

Bluetooth Problems

If you have Bluetooth connection issues or issues pairing devices after iOS 17.3:

  • Reset Network Settings
  • Ensure the Bluetooth device has updated firmware
  • Unpair and re-pair the Bluetooth device
  • Consult the device manufacturer for potential incompatibilities

Wi-Fi Connectivity Issues

If your Wi-Fi is not working properly after updating:

  • Reset Network Settings
  • Toggle Wi-Fi off and on
  • Forget the Wi-Fi network and reconnect
  • Ensure router firmware is updated
  • Move closer to the Wi-Fi router

App Crashes/Freezes

For apps crashing or freezing after the update:

  • Restart your device
  • Update apps to latest version
  • Delete and reinstall apps having problems
  • Offload unused apps to free up storage space

Excessive Battery Drain

If your battery drains faster after updating:

  • Fully charge your device and use until empty to recalibrate
  • Check battery health and capacity
  • Turn off Background App Refresh for apps not needing it
  • Lower screen brightness
  • Turn off Wi-Fi and Bluetooth when not needed

Slow Performance

If your iPhone/iPad feels sluggish after iOS 17.3:

  • Restart device
  • Update apps
  • Free up storage space
  • Disable unnecessary system animations
  • Consider factory reset as last resort

Contacting Apple Support

If you still cannot resolve your iOS issues after trying these troubleshooting steps, contact Apple Support for personalized assistance:

You can speak to an Apple Advisor by phone or chat online. They can run diagnostics, suggest additional fixes specific to your device, and escalate the issue if needed.


Here is a quick recap of the troubleshooting steps for iOS 17.3 problems:

  1. Redownload the update
  2. Update with iTunes
  3. Restart your device
  4. Reset network settings
  5. Check compatibility
  6. Free up storage space
  7. Ensure stable internet
  8. Check battery health
  9. Troubleshoot specific issues
  10. Contact Apple Support

With a few simple fixes, you can typically resolve most installation issues and bugs arising from the iOS 17.3 update. Take the time to carefully apply each troubleshooting step. This will get your iPhone or iPad back up and running optimally so you can enjoy the great new features in iOS 17.3.

Table summarizing the troubleshooting steps:

IssuePossible Solution
Download failureRe-download update, use stable Wi-Fi, update via iTunes
Installation failureUpdate via iTunes, restart device, check compatibility
Bluetooth problemsReset network settings, re-pair devices
Wi-Fi problemsReset network settings, toggle Wi-Fi
App crashesUpdate apps, restart device
Battery life reducedRecalibrate battery, check battery health
Slow performanceRestart device, free up storage


Updating your iPhone or iPad to the latest version of iOS allows you to access new features and important security enhancements. However, system software updates can sometimes introduce bugs or issues.

With the comprehensive troubleshooting guide above, you can quickly diagnose and resolve any problems encountered after updating to iOS 17.3. The key is to methodically work through each solution until normal functionality is restored.

While some users may experience frustration after an iOS update temporarily causes issues, Apple typically launches follow-up software updates to address reported problems. Make sure to install any supplemental iOS updates after 17.3 that help smooth over bugs.

With a few proactive troubleshooting steps, you can get your iPhone or iPad working like normal again after installing iOS 17.3. The update delivers fun new capabilities like Unity game support, iCloud improvements, and more reliable FaceTime connectivity when applied properly. By following this guide, you can enjoy a seamless update experience.

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