Can't connect device to Xcode after updating to iOS 18.1 beta 7

Ever since updating both my iPhone and iPad to iOS 18.1 beta 7, they simply won't connect to Xcode 16.1 beta 3.

When connecting via cable, Xcode gets stuck on preparing for 5 to 10 mins and then outputs the below error:

The developer disk image could not be mounted on this device.
Domain: com.apple.dt.CoreDeviceError
Code: 12040
Failure Reason: The caller does not have permission to perform the specified operation.
User Info: {
    DDIPath = "/Library/Developer/DeveloperDiskImages/iOS_DDI.dmg";
    DVTErrorCreationDateKey = "2024-10-15 9:06:17\U202fpm +0000";
    DeviceIdentifier = "63EC7037-121B-4E79-9553-952A09720DAC";
    NSURL = "file:///Library/Developer/DeveloperDiskImages/iOS_DDI.dmg";
    Options =     {
        MountedBundlePath = "file:///private/var/tmp/CoreDevice_DDI_Staging_501/63EC7037-121B-4E79-9553-952A09720DAC/";
        UseCredentials = 0;
    };
    "com.apple.dt.DVTCoreDevice.operationName" = enablePersonalizedDDI;
}
--
The caller does not have permission to perform the specified operation.
Domain: com.apple.dt.CoreDeviceError
Code: 2
--
Error mounting image: 0xe8000109 (kAMDMobileImageMounterNetworkForbiddenError: A network error occurred (forbidden).)
Domain: com.apple.mobiledevice
Code: -402652919
User Info: {
    FunctionName = AMDeviceRemoteMountPersonalizedBundle;
    LineNumber = 2145;
}
--
AMAuthInstallRequestSendSync failed: 3503 (kAMAuthInstallErrorHTTPForbidden)
Domain: com.apple.mobiledevice
Code: -402652919
User Info: {
    FunctionName = "-[PersonalizedImage mountImage:]";
    LineNumber = 2042;
}
--


System Information

macOS Version 15.0.1 (Build 24A348)
Xcode 16.1 (23502) (Build 16B5029d)
Timestamp: 2024-10-15T22:06:17+01:00

Any solution for this issue?

Answered by DTS Engineer in 809389022

Could you kindly try again and let us know the result? There were some transient service issues yesterday for many Apple Developer systems, and so that is a possible reason for this.

If you still get this message after trying again, you should also confirm that you have unimpeded network access, in case something like a network filter in a corporate environment is a part of your overall configuration, or just general internet connectivity issues on your end.

— Ed Ford,  DTS Engineer

Accepted Answer

Could you kindly try again and let us know the result? There were some transient service issues yesterday for many Apple Developer systems, and so that is a possible reason for this.

If you still get this message after trying again, you should also confirm that you have unimpeded network access, in case something like a network filter in a corporate environment is a part of your overall configuration, or just general internet connectivity issues on your end.

— Ed Ford,  DTS Engineer

Can't connect device to Xcode after updating to iOS 18.1 beta 7
 
 
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