i1Pro spectrophotometer is EOL and not supported by newer versions of Xrite Services used by i1Profiler and DUCCS. This is Xrite EOL policy, not Dells.You'll need i1Pro2 spectrophotometer or newer or i1DisplayPro colorimeter. DUCCS 1.6.6 (no W11 official support) or 1.6.5 should use older Xrite services and support the i1Pro spectrophotometer. Uninstall DUCCS and Xrite Services before reinstalling older DUCCS versions. Also do not install newer i1Profiler versions because it will overide SDK in windows / System and you'll face same problem.If you use both Xrite Services and ArgyllCMS on the same computer with i1ProX spectrophotomeyters (like I do) remember to swicth to proper driver in Device Manager for each app before starting them.
I am unable to calibrate my UP2716D monitor using the i1 Pro puck on Windows 11, as the 'Demo' label persists and the application (version 1.6.7) freezes upon entering the start calibration page. However, when using the same monitor on my Windows 10 computer, I can launch the application (version 1.6.6) and initiate the calibration process, but it crashes every time it attempts to build an internal LUT. Consequently, CAL2 has become unusable due to the corrupt data. After thorough examination, I have determined that the issue lies within the application itself. I am optimistic (desperately hoping) that using an older version may resolve this problem. Question: Could you please provide a link to the version 1.5.10 of DUCCS?
UP2716D, DUCCS not working Windows 10/11, seeking 1.5.10