How to fix iCloud authentication, unsupported Apple ID error on Apple iPhone XR

As the error prompt denotes, this pertains to an issue in which the phone isn’t able to access iCloud due to invalid or unsupported Apple ID. Basing on the error prompt alone, the problem is pretty obvious. Even so, there is no instant solution.

To give you some inputs on how to deal with the same iCloud authentication error on your iPhone XR, I’ve mapped out some generic solutions below. Feel free to refer to this guide whenever you need help troubleshooting the problem on your end.

But before we actually move on to our troubleshooting, if you have other issues with your phone, then visit our iPhone XR Help Guides as we’ve already addressed some of the most common problems with this device. There could already be articles we published that may help you fix the problem with your phone.

How to troubleshoot iPhone XR with iCloud authentication error

Before you start doing anything, check your Internet connection. Make sure your iPhone is connected and isn’t experiencing Wi-Fi drops. Otherwise, you will need to deal with Wi-Fi Internet problems beforehand. If the Internet is working fine but the error persists, you can start troubleshooting your iPhone XR whenever you’re all set.

First solution: Reboot your iPhone XR (soft reset).

This should deal with minor system errors that may have caused the phone’s iCloud system to glitch and prompt an error. To soft reset or reboot your iPhone XR, simply refer to these steps:

  1. Press and hold the Side/Power button and either Volume buttons simultaneously for a few seconds.
  2. Release the buttons when the Slide to Power Off command appears.
  3. Drag the power off slider to the right.
  4. After 30 seconds, press and hold the Power button or Side button again until the phone reboots.

Performing a soft reset also dumps cache including corrupted temporary data from the internal memory. Any system errors inflicted by cache problems will therefore be rid of

Second solution: Sign out of iCloud then sign in again.

Like other account services, iCloud services can also experience random errors and glitches that can also be remedied by simply signing out and back in to the iCloud account. There are different ways to sign in and out of your iCloud account. You can do so using a web browser on your computer or through your iPhone settings.

To sign in and out of iCloud through a web browser on your computer, follow these steps:

  1. Navigate to and sign into your iCloud account by entering your Apple ID and password. A six-digit verification code will then be sent to your device.
  2. Enter the verification code to confirm iCloud sign in.
  3. Go back to the iCloud page and follow the onscreen prompts to continue signing into your iCloud account.
  4. If you’ve already signed into your iCloud account, all you have to do is click on the iCloud Settings menu from the iCloud page and then select the option to Sign Out.

Here’s how to sign out of iCloud on your iPhone XR:

  1. Tap Settings from the Home screen.
  2. Tap on [your name].
  3. Then scroll down to and tap the Sign Out button.

Follow the rest of the onscreen commands to complete the sign out process. After signing out of iCloud, restart your iPhone XR and then sign into your iCloud account again with these steps:

  1. Tap the option to Sign in to your [device].
  2. Enter your Apple ID and password.
  3. If your iCloud account is protected with two-factor authentication, enter the six-digit verification code and complete sign in.

Once you have successfully signed into your account, retry accessing or syncing files to iCloud and see if the error is gone.

Third solution: Reset and update your Apple ID password.

Other iPhone owners who bumped into the same issue were able to obtain solutions from resetting and updating the password for their Apple ID account. Should you wish to give it a shot, then you may do so with these steps:

  1. Open a browser app and then head over to the website.
  2. Enter your Apple ID username on the given field, if necessary.
  3. Then tap the link that says, Forget Apple ID or Password?

You will be prompted with a series of commands to complete the password reset. After resetting your password, try logging into your Apple ID account by entering the new password you created. If you are able to login to your Apple/iCloud account successfully, the problem is solved. Hence, you should no longer be prompted with the iCloud authentication error. Else, try resorting to more advanced solutions including iOS resets and system restore.

Fourth solution: Reset and restore default network settings on your iPhone XR.

To rule out network-related errors that may be inflicting trouble with your phone’s iCloud functions, try resetting network settings to restore the default options and original configuration. Doing so will likewise resolve network-connection errors that might have prevented your device from establishing stable connection to the iCloud servers. Here’s how it’s done:

  1. Tap to open the Settings app from the Home screen.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select Reset Network Settings option.
  5. If prompted, enter your device passcode to continue.
  6. Then tap the option to confirm network settings reset.

When the reset is finished, the phone should reboot by itself. Wait until it boots up then navigate to your iPhone’s settings menu to enable Wi-Fi and reconnect to your Wi-Fi network. Once your device is connected, retry signing into your iCloud account using the associated Apple ID and password.

Fifth solution: Reset and restore factory settings and set up your iPhone XR as new.

Among the last options you can try on first would be a master reset. This reset will wipe everything from your phone system and then restores the default configurations and factory settings. Tough bugs and malware that might have ruined the phone’s system functions are likewise cleared out in the process. This therefore allows you to set up and use your iPhone as new. The simplest way to master reset or factory reset is through your iPhone settings. Here’s how it works.

  1. Back up all your important files to iCloud or iTunes. Doing so will let you recover and use them later. Otherwise, they will be deleted permanently. After creating backups, start performing iOS reset with the next steps.
  2. Navigate to Settings-> General-> Reset menu.
  3. Select the option to Erase all content and settings.
  4. Enter your passcode when asked to proceed.
  5. Confirm factory reset.

Wait until your device is finished resetting and restore factory default settings. After it reboots, you can proceed with the initial setup process and set up your Apple ID and iCloud as new.

Alternatively, you cause use iTunes to manually reset and restore factory default settings on your computer. This should be an option to consider if your iPhone is having trouble with the Internet connection. After the reset, iTunes will install the latest software version on your device.

Seek more help

For other suggestions and more advanced solutions, you may contact Apple Support. Let them know of what exactly happened or how you ended up having this iCloud authentication or unsupported Apple ID error on your iPhone XR. If possible, you can ask the support team to help you reset your Apple ID for your iCloud services.

I hope that this how-to post has helped you one way or another. Please help us spread the word by sharing this post to your friends or people who may also have similar problems. Thanks for reading!