Updating iOS versions wirelessly is as easy as going through the settings menu in your iPhone. However, there are still some factors that can make an OTA update more complicated or interrupted and this is when errors appear.
Highlighted in this post is a relevant issue occurring on the new iPhone XS/XS Max handset. Keep reading this post to know what to do if you encounter an error that says, “Unable to check for update” when you check for and install new iOS updates through OTA (wirelessly).
How to troubleshoot iPhone XS/XS Max that could not check for updates
Before proceeding, you should check the Internet connection. A stable Internet connection is an important key to installing iOS updates via OTA (wirelessly). Another thing to check is the Apple server status. To check, simply visit the Apple Support website and head to Apple’s system status page. If there is a yellow icon next to an item, it means that there is a problem with Apple’s server and OTA update is unavailable. Unfortunately, all you can do is waiting for Apple engineers fixed the problem. If the icon appears in green, then the problem comes from your end and you have to troubleshoot your iPhone.
Solution 1: Disable Wi-Fi and turn it back on.
To update iOS versions on your iPhone wirelessly, you need a fast and stable Wi-Fi connection. If your device is facing Wi-Fi connectivity issues like no Internet connection, you first need to resolve network problems. Should it’s a random network error, then restarting Wi-Fi connection on your iPhone XS/XS Max could likely fix the problem. Try disabling Wi-Fi and then turn it back on.
- To do this, navigate to Settings-> Wi-Fi and toggle the Wi-Fi switch off. After 10 seconds, tap the switch again to re-enable Wi-Fi.
Another way to refresh Wi-Fi internet connection on your iPhone is turning on Airplane Mode and then disabling it.
- To do so, head to Settings-> Airplane Mode and toggle Airplane Mode switch on for a few seconds. This will turn off wireless radios on the phone.
- After 10 seconds, toggle the Airplane Mode switch off to re-enable wireless radios. Next, wait for your iPhone to automatically reconnect to your Wi-Fi network and you can then check for new OTA updates.
Doing the Airplane mode trick is similar to giving a quick reboot on wireless network functions of your iPhone. It’s also an alternative method to get rid of random issues and errors triggering wireless functions.
Solution 2: Forget Wi-Fi network then reconnect
Another way to fix Wi-Fi connection errors on your iPhone XS/XS Max is to forget or disconnect our phone from the Wi-Fi network and set it up again. This is a useful method in case the wireless network gets corrupted and is no longer working. If you want to give it a try, here is how to forget Wi-Fi network on your iPhone XS/XS Max:
- Open Settings app from the Home screen.
- Tap on Wi-Fi and navigate to your current Wi-Fi network
- Tap on “i” icon next to it.
- Choose Forget This Network.
- Tap on Forget again to confirm the selection.
- After forgetting the current Wi-Fi network, simply restart your iPhone to refresh the memory and then return to Settings-> Wi-Fi to set up and reconnect to your Wi-Fi network.
If you’ve already set up other Wi-Fi networks, you can try switching to them and check if you can update the latest iOS version through that network.
Solution 3: Reset network settings on your iPhone XS/XS Max
Performing a network settings reset will be a good solution if you are encountering network problems related to incorrect network settings. Doing so will also clear out all your saved networks, like APNs and server settings and then restore them to the default network values. Before proceeding, you should note your Wi-Fi passwords to re-enter them later after you complete setting up your Wi-Fi network. Next, follow these steps when you’re all set:
- Open Settings app from your Home screen.
- Tap on General > Reset.
- Select Reset network settings option.
- When prompted, enter your phone passcode to continue.
- Tap on the popup again to confirm.
After you reset the network settings, your iPhone will automatically restart and reload all default network values. All you need then is to set up and reconnect to your Wi-Fi network.
If your iPhone is running on a beta tester, you should remove your beta profile, check for and install new iOS updates on your iPhone XS/XS Max by following these steps:
- Launch Settings app from your Home screen.
- Tap on General > Profiles.
- Choose iOS Beta Software Profile to delete.
- Tap on Remove Profile option
After deleting the beta profile, simply restart your iPhone and try updating again.
You should also find and then delete partial updates from your iPhone XS/XS Max. There is a chance that a partial update has been downloaded and then saved on the phone. In this case, you have to delete that update. To check for partial updates on your iPhone XS/XS Max:
- Tap on Settings app from your Home screen.
- Select General > iPhone Storage.
- Find the iOS update file from the list.
- Next, select the iOS update.
- Choose Delete Update option
- Once you delete the update, restart your iPhone XS/XS Max and return to Settings-> General-> Software Update section.
If you’re still dealing with the same “Unable to check for update” error, you can use iTunes to check for and install the latest iOS update on your iPhone XS/XS Max.
Solution 4: Use iTunes to download and install the new iOS update on your iPhone XS/XS Max
If none of the solutions above helps you fix the error and your iPhone still failed to download new iOS update wirelessly, you should manually download iOS updates through iTunes. You can use either a Windows or a Mac computer as long as the latest iTunes version has been already installed. Your computer must also be connected to the internet to access the Apple server. Once everything is done, follow these steps below to manually update your iPhone:
- Plug your iPhone into your computer using a certificated Lightning cable.
- Launch iTunes on your computer.
- Click on iPhone icon when it appears in iTunes.
- Click on Summary tab and click Check for Update button.
- If there is an update available, click Download and Update option
- Enter your device passcode when prompted to proceed.
Now, simply follow the rest of the onscreen instructions to complete the installation. Do not unplug your iPhone from the computer until iTunes completes installing the update on your iPhone.