Hi, I was initially stuck with the issues described in thread 749821 between Sonoma 14.4.1, XCode 15.3, iOS 17.4.1 and watchOS 10.4. => Unable to deploy the watch app from Xcode Yesterday when I saw the availability of XCode 15.4 beta, I decided to give it a shot. This was a bad idea: now I can not even connect the iPhone anymore. When running with XCode 15.4 beta: The developer disk image could not be mounted on this device.. Error mounting image: 0xe8000105 (kAMDMobileImageMounterTATSUDeclinedAuthorization: The server declined to authorize this image on this device for this user.) After reverting toe XCode 15.3, I have a similar issue: Unable to locate a developer disk image that can be used to enable DDI services.. _synchronousInvoke(passing:context:continuingUsing:): Failed to find a DDI that can be used to enable DDI services on the device. Usually this means the best DDI we could find for a platform did not have compatible CoreDevice content. Failed to enable developer disk image services for assertion 7AB063A7-1F6F-4558-AEE6-7A4A00706E68. Error: <private> I tried the following: Unpair / Repair the iPhone Disable Wifi Reinstall the iPhone and the Watch Reinstalled XCode several times I also double checked that the DDI images are correct: For XCode 15.3: shasum ~/Library/Developer/DeveloperDiskImages/iOS_DDI.dmg b75a90c64a0ece8f02ca3f4437208366e4884a6b For XCode 15.4 beta the sha is 287c2f83d888fc085fb6cef2328a6e46dd027399 Questions: What can I do to diagnose further and fix this issue? Where can I get more detailed logs than what I can see in the Console related to the DDI images (like the log visible in this thread) Thanks Tiry