iPhone 17 Pro on iOS 26.3 stays unavailable in xcrun devicectl list devices even with Xcode 26.4 beta 2

I am unable to use my iPhone 17 Pro as a run destination in Xcode. The device appears at a low level, but CoreDevice / devicectl keeps reporting it as unavailable.

Environment • Mac mini (Apple Silicon) • macOS 26.3 (Build 25D125) • iPhone 17 Pro • iOS 26.3 • Xcode 26.3 (Build 17C529) • Xcode 26.4 beta 2 (Build 17E5170d)

Symptoms • The iPhone appears in Finder • On the iPhone, I tapped “Trust This Computer” • Developer Mode is enabled • Apple ID is added in Xcode Accounts • Team is configured in Signing & Capabilities • iOS Platform Support is installed • The device still does not become available as a run destination • Devices and Simulators does not show it in a usable state • xcrun devicectl list devices still shows unavailable

Output of xcrun devicectl list devices

Failed to load provisioning paramter list due to error: Error Domain=com.apple.dt.CoreDeviceError Code=1002 "No provider was found." UserInfo={NSLocalizedDescription=No provider was found.}. devicectl manage create may support a reduced set of arguments. Name Hostname Identifier State Model


   CAC1B56A-C3B4-59FF-8F9D-659277C7C76C.coredevice.local   CAC1B56A-C3B4-59FF-8F9D-659277C7C76C   unavailable   iPhone18,1

What I already tried • Apple cable • Different USB/Thunderbolt ports • Direct connection to rear ports • Restarted both Mac and iPhone • Restarted Xcode • Ran sudo killall usbmuxd • Ran sudo pkill -9 remoted • Upgraded Xcode from 26.2 to 26.3, then to 26.4 beta 2 • Ran sudo xcode-select -s /Applications/Xcode-beta.app • Ran sudo xcodebuild -runFirstLaunch • Reset “Location & Privacy” on the iPhone, then trusted the Mac again • Still remains unavailable

Additional note

ioreg shows the iPhone, so the physical USB connection seems to exist. However, at the CoreDevice / devicectl layer the device remains unavailable, and Xcode cannot use it for on-device build/run.

Is this a known issue with macOS 26.3 / iOS 26.3 / Xcode 26.4 beta 2? Any workaround or additional debugging steps would be appreciated.

iPhone 17 Pro on iOS 26.3 stays unavailable in xcrun devicectl list devices even with Xcode 26.4 beta 2
 
 
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