How to fix iCloud authentication error on iPhone XS after iOS 13 update,  unsupported ID error [Troubleshooting Guide] 

Having trouble using iCloud on your iPhone XS after the iOS 13 update? Read on to find out what to do if you’re getting an unsupported ID or iCloud authentication error on your iPhone XS in iOS 13.

An iCloud authentication error or unsupported ID error is one of the problems encountered by many iPhone owners after the recent iOS 13 update installation. Apparently, this error would make you think that there’s something wrong with your Apple ID credentials when you haven’t changed anything on it. This is such an annoying issue as you won’t be able to connect to Apple’s iCloud verification servers. Hence, you won’t be able to use and manage files from or to iCloud. If by any chance, you’re getting the same iCloud authentication error or unsupported ID error on your iPhone XS after the iOS 13 update, I’ve gathered some useful troubleshooting procedures that you can try as you attempt to fix the problem on your end. These are just simple workarounds so you wouldn’t find them hard to execute.

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Troubleshooting iCloud authentication error on iPhone XS after iOS 13 update

The following solutions will help eliminate possible triggers such as random software glitches, network-related errors, account-related problems and other software-related factors that hindered your device from accessing iCloud services. You may begin troubleshooting whenever you’re ready.


First solution: Soft reset your iPhone XS.

You’ll usually see the iCloud authentication error when trying to use App Store or logging in to iTunes. Patches from the recent software update not only brings system improvement but they could also impose threats due to the random bugs it contains. Gladly, those affected users who wants a quick solution that could possibly kill minor system bugs inflicted by the recent update can get help by performing a soft reset on their device. Doing so not only refreshes the system but it will also help you clear dump cache that could add triggers on the issue. If you haven’t restarted the phone yet, here are the steps:

  1. Press and hold the Power/Side button and either of the Volume buttons simultaneously for a few seconds.
  2. Release both buttons once Slide to Power off prompt appears on the screen.
  3. Drag the Power off slider to the right to turn off your phone.
  4. After 30 seconds, press and hold the Power/Side button again until you see the Apple logo.

Once the reset process is done, ensure that Wi-Fi connection has been established before checking if the iCloud authentication or unsupported ID error is resolved.

ALSO READ: How to fix GPS that is not working on iPhone XS after iOS 13 update, location bug [Troubleshooting Guide]


Second solution: Turn the Wi-Fi off then on.

Network-related connectivity problems caused by software glitches following an update can also trigger the iCloud authentication error or unsupported ID error. There might be a blockage on the connections and could be the reason why your device can’t communicate well to the iCloud verification servers. Enabling and disabling the Wi-Fi connection on your device is an unorthodox solution created for users who wants a fast-paced resolution. If you want to try this process, follow these steps:

  1. Select Settings from the Home screen.
  2. Tap on Wi-Fi.
  3. Toggle the Wi-Fi switch to turn the feature off for a few seconds and then tap the switch again to turn it on.

Also, one common alternative provide that could provide a holistic approach when it comes to connection refresh is toggling airplane mode. Turning on airplane mode allows your device to cut all wireless radio connections. Turning it off will reconnect all radios allowing your connections to get refreshed.  You can perform airplane mode refresh with these steps:

  1. Access Settings from the Home screen.
  2. Check Airplane mode. If toggle is currently turned on, tap on it to switch it off. If not, tap the toggle to turn it on.
  3. While the Airplane mode is enabled, perform a soft reset on your device.
  4. Wait for your phone to go back online after the reset then access Settings > Airplane mode. Tap the switch to disable the feature.

Once proper connections has been established especially Wi-Fi, try opening App Store or connect to iTunes to see if the issue has been rectified.


Third solution: Reset network settings to fix iCloud authentication error on your iPhone XS in iOS 13.

It is important that proper network settings are saved on your device for online services to work properly. There’s a great chance that some of your phone’s setting has been altered by the recent software update if the issue only occurs after it’s installed. To remove invalid settings that might have been the culprit why your phone succumb to iCloud authentication error, perform reset network settings on your iPhone XS. This will delete all customized settings including iOS overrides and revert them to the default configurations. Here’s how it’s done:

  1. Access Settings from the Home screen.
  2. Tap General.
  3. Scroll down to and then select Reset.
  4. Tap the Reset Network Settings option.
  5. Enter your device passcode once prompted.
  6. Then tap to confirm network settings reset.

Automatic device restart will be implemented after the reset network settings is completed. This process will delete the Wi-Fi networks on your iPhone, so you’ll have to reconnect your device to the Wi-Fi.

ALSO READ: How to fix ghost touch bug on iPhone XS after iOS 13 update [Troubleshooting Guide] 


Fourth solution: Check for a new software update to download and install.

Reports on post-update errors are usually sent to Apple for further investigation. Once enough data have been acquired, Apple will usually release a follow-up update after the major iOS roll out. Updating your phone to the latest software version will provide patches that fixes reported errors. Normally, once a new version is available, software updates happen automatically. However, you can manually check updates on your device by following the steps below:

  1. Access Settings from the Home screen.
  2. Select General.
  3. Tap on Software Update.

A pop-up notification will appear once there’s an available new software update. Just read the information and follow the instructions. Also, make sure that your phone has at least 50% battery life and is connected to a Wi-Fi network with good internet speed and stable connection for the update to push through.


Fifth solution: Sign out from your iCloud account then sign in again.

Major iOS updates like iOS 13 can change information on your phone easily like the iCloud credentials. If ever this is the reason why you’re getting an iCloud authentication or unsupported ID error on your iPhone XS, signing out from your iCloud account then signing in again could help in fixing the problem. Refer to the steps below to perform this procedure:

  1. Access Settings from the Home screen.
  2. Tap on [your name].
  3. Scroll down and tap on Sign Out.
  4. Enter your Apple ID password and tap Turn Off.
  5. Turn on the data that you want to keep a copy on your device.
  6. Tap Sign Out.
  7. Tap Sign Out again to confirm that you want to sign o
  8. ut of iCloud.

After a successful sign out from your iCloud account, reboot your device. Once it boots up, sign in your iCloud account again under Settings. Your iCloud login credentials needs to be entered multiple times since it going to be used to multiple services.

ALSO READ: How to fix an iPhone XS that keeps losing Wi-Fi signal after iOS 13 update [Troubleshooting Guide] 


What to do if you’re still getting an iCloud authentication error on your iPhone XS in iOS 13?

Sometimes, server downtimes are the underlying cause. Although the problem had started from an update, ruling out real-time server issues is also important. To ensure that Apple servers are available and is not experiencing any issues, you can look at Apple’s System Status. Configuring the date and time on your phone or using automatic date and time information can also increase the chance of fixing the problem.

If none of the solutions indicated above fix the iCloud authentication error or unsupported ID error on your iPhone XS in iOS 13, then you should have it escalated to Apple support. Doing so will let them become aware that such a problem exists from the iOS 13 update and thereby start making necessary assessments on their end. If this is confirmed to be an iOS 13 iCloud bug, rolling out a dedicated fix patch would be necessary.

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