Country / Region

If you're having trouble changing the country or region on your iPhone XR, there are a few things you can try:

1. Check if your iPhone is locked to a specific carrier: If your iPhone is locked to a specific carrier, you may not be able to change the country or region until the device is unlocked. Contact your carrier to determine if your iPhone is locked and if unlocking it is possible.

2. Check your Apple ID region: Your Apple ID is tied to a specific region, and changing your iPhone's region may require you to update your Apple ID information. Go to "Settings" > "iTunes & App Store" and check the Apple ID region. If it's different from the region you want to change your iPhone to, you may need to update your Apple ID information first.

3. Check for restrictions: If your iPhone is managed by an organization or has parental controls enabled, you may not be able to change the region. Check for any restrictions in "Settings" > "Screen Time" > "Content & Privacy Restrictions" and disable them if necessary.

4. Reset your iPhone: If none of the above steps work, you may need to reset your iPhone. Go to "Settings" > "General" > "Reset" and select "Erase All Content and Settings." This will erase all data on your iPhone, so make sure to back up your data first.

After resetting your iPhone, you can set it up as new and choose the country or region you want. If you're still having trouble changing the country or region on your iPhone, contact Apple Support for further assistance.

Read this support article very carefully:--> Change your Apple ID country or region

As for the message appearing on your screenshot, I suggest that you contact Apple Support directly, using this specific link:--> https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0998&symptom_id=20198

Regards

Giulio