No matter which Version you use, either the Slim or Phat Version, they will not work.
Slim gives you a Error requiring a Slim or M33 CFW
Phat will start correctly, but when selecting a Rom, gives you either a Blank Screen or Emu Crash. Windows and Android.
New Update
MVSPSP 2.3.5 for Slim will not work. Says Requires PSP-2000 + FW 3.71 M33 or later
The Phat Version wants to run.........but once you Select a Rom, you are given a Black Screen and the PPSSPP Crashes
I use Windows 10 operating system, however I just updated to the new operating system windows 11, this makes some software not work as before. Do not know where is the problem for? Do you know? Please share with me
The Slim error is a firmware/model check, so in PPSSPP try setting PSP Model to PSP-2000 and Firmware Version to 3.71 M33 if that option is listed, then retry the Slim build. The Phat build crashing after ROM selection is more likely a compatibility or ROM issue; try a different MVSPSP build and verify the ROM set. The Windows 11 part is separate.