With the iOS 10.3 update out, many users are in the process of updating their iPhones and iPads. Unfortunately, some users encounter the message “Unable to Install Update – Error occurred installing iOS.” If you are one of these few unlucky users receiving this message, please continue reading this article for tips to tackle this issue. While you might not have experienced this error before with a previous update, it isn’t that uncommon in the early days of an iOS release because so many people around the world are trying to update at the same time. Sometimes, all we need is patience–just wait a few hours and try again.
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- 1 What’s this iOS 10.3 update anyway?
- 2 Error Occurred Installing iOS 10.3: How-To Fix
- 3 Delete Failed iOS Update Files
- 4 Problems Updating iPhone 5 or 5C or 4th generation iPad?
- 5 Update iOS Via iTunes
- 6 Stuck on Verifying Update?
- 7 Wrap Up
What’s this iOS 10.3 update anyway?
First thing first, with iOS 10.3, Apple introduces a brand new file system. The almost thirty-year-old file system that Apple used since the beginning of iPhones and iPods (called HFS and HFS+) is being replaced with Apple’s own Apple File System (APFS). Before you install the iOS 10.3 update, we highly recommend that you backup your device on both iCloud and iTunes.
Do I Really Need to BackUp?
In the case there is an issue during the install, backups are there to get your iDevice back into working order. With a backup, you can recover all your old data. So yes, it’s worthwhile to backup your iDevice, using both iCloud as well as iTunes. For specific information on how to backup, please refer to our complete step by step guide that shows you how to do a full backup of your iDevice.
Before You Update Your iOS
Please make sure that your iPhone or iPad is connected to power (preferred) or has sufficient charge to make it through the upgrade. If you’re unsure, charge your device before attempting to upgrade or just plug it in and then update.
Error Occurred Installing iOS 10.3: How-To Fix
Now, that you finished your backup let’s tackle this install error. For users who encountered this error while performing an OTA (over-the-air) update for your iDevice, the best path forward is to use iTunes when installing iOS 10.3.
If you are not a big fan of iTunes, try the following tips and check if your iPhone updates to this latest iOS without any hiccups using OTA.
Tip # 1 – Toggle AirPlane Mode
Tap on Settings > Enable Airplane Mode. Switch Off your iPhone. After 10 seconds or so, turn it back on and disable the Airplane mode. Next, try to update your iPhone as you would normally do by using Settings> General >Software Update
Tip # 2 –Update Your Network Settings
If updating via OTA gives that all too familiar “Not connected to the Internet” error, two things often help with that issue: A) Resetting the Network Settings on the iPhone & B) Changing your DNS settings to 22.214.171.124 for your WiFi. Give it a try and see if that resolves your issue.
Tip # 3 –Force a Restart
Some readers tell us that when they see this message or if their update fails, a forced restart followed by a reinitiation of the update does the trick. Depending on your iDevice, PRESS & HOLD both the POWER button and either the HOME (for iDevices with mechanical homes) or the VOLUME DOWN buttons and continue holding until the Apple logo appears. Then release.
Tip # 4 –Close Settings App
Refreshing your Settings app just might do the job. Double tap your Home button then swipe up on the Settings app until it slides out of view. Next, tap Settings again and go to General >Software Update. Try to install the update again.
At this point, if you are not successful, your best bet is to move forward with using iTunes to do the update.
Delete Failed iOS Update Files
For some users who attempted to install the update wirelessly (OTA), the software update may still exist on your iPhone’s storage. So go ahead and delete the OTA version from your iPhone before proceeding with the iTunes steps below. In order to check this issue, Tap on Settings > General > Storage & iCloud Usage.
To check for a failed iOS update file
- Tap on Settings > General > Storage & iCloud Usage
- Tap on ‘Manage Storage’ under Storage section at the top. (Not under iCloud). On the next screen, scroll down
- On the next screen, scroll down to the list of apps and check if you have the new iOS 10.3 update listed. If so, tap on it and delete it. This removes the unpacked OTA from your iDevice
The step to remove the unpacked iOS Update from your iPhone is critical before you move forward with the iTunes steps. Users who bypass this may encounter the error “No Updates Found” when they check again for iOS updates.
Problems Updating iPhone 5 or 5C or 4th generation iPad?
Some readers report problems upgrading their iPhone Models 5, 5C, and fourth-gen iPads. When they go to Settings > General >Software Update to upgrade to iOS 10.3 via OTA, their iPhones say that there is no update needed. Specifically, it says that iOS 10.2.1 is up to date when checking for an upgrade. If you’re getting this same result on your iPhone 5 or 5C (or any other model that’s supported) try updating your iPhone using iTunes and see if that works. Or wait a few more days, and the update should show up for OTA updates in your iDevice’s Settings. Now that iOS 10.3.1 is out, all iPhone 5 and 5C owners are able to update their iDevices!
If you know the OTA update is out for 32bit, perform a hard reset by pressing and holding the Home and Power buttons until the Apple logo appears. This action might force your iOS 10.3 updates to show up on your older iPhone!
End of the 32bit era?
The 4th generation iPad and iPhone models 5 and 5C uses 32bit iOS architecture. These were the last iDevices to use the A6 system-on-chip and the last built with a 32-bit architecture. All new iOS versions and iDevice hardware (post-2013) are 64bit. Consequently, the 32bit version releases later than the 64bit version for OTA (over-the-air) updates. However, iPhone 5C owners can get immediate access to the iOS 10.3 update by just connecting their phones to iTunes and updating from there.
iOS 10.3 also includes a warning when opening 32-bit apps, letting you know that “This app will not work with future versions of iOS.” Additionally, the latest developer release of iOS 10.3.2 no longer supports 32but hardware. All signs point to 32bit obsolescence when the latest major iOS version (presumably named iOS 11) arrives later this year to mark the 10th anniversary of iPhone.
Update iOS Via iTunes
- Connect your iPhone/iPad to your computer running iTunes using the cable
- Make sure that your Mac or Windows PC is running the latest iTunes
- Open iTunes and select your device from the left panel
- Click on “Check for Update.” Find the new update
- Lastly, Click on Download and Update
Problems with iTunes and Updating?
Stuck on Verifying Update?
If you attempted an update and all looked well until the iDevice seemingly got trapped in verify for more than 15 minutes and then failed, try the following. Deleted the update using the steps listed above in the delete failed update section, restart your device, and then try updating again using iTunes (preferred) or iCloud. For many, the second try is the trick that worked!
Other readers have success with doing a hard reset by pressing and holding power plus home (for mechanical home buttons) or volume down until Apple logo appears. And then going back to install the downloaded update.
- When I got stuck on the 10.3 Verifying Update Message twice, I turned off WiFi and verified over LTE Data and bang, everything completed in minutes. So try to verify over your mobile data connection. It worked for me. Just remember, this is for the verify message not download!
- Turn WiFi off and then turn on cellular data. Go to Settings > General > Software Update and find the iOS update. Once located, keep this update window open and swipe up control center and then turn WiFi ON again. When it connects to WiFi, it finally allows you to update
- If you or someone you know has a Personal Hotspot, connect to their Hotspot and then download the update via Bluetooth, not WiFi
- This is what worked for me: download the update via WiFi then when the Install Now Button appears, switch to data and let the update verify. From there it successfully updates
- The only thing that worked for me was to Recover my iPad with iTunes using iOS10.3. Hold the Alt-Key when selecting the Update-Button and choose the Firmware to recover manually. Then setup your iDevice from a Backup
We hope that the tips and steps above were helpful in resolving the iOS 10.3 upgrade issue. Please do keep in mind that sometimes when a new iOS is released, Apple’s servers may be slow and you may have to try the update a few times to get it working. You can always check the status of Apple’s servers by clicking here.