Cyclone II EP2C35 - SOF downloaded but doesn't run

even if the project is called MyProject and normaly it would generate a MyProject.sof, but if you loose your licence for any circustance the same system would generate a MyProject _time_limited.sof (something like that) and leave the MyProject.sof untouched.

i had this a couple of times and it took each time a couple of compile and programm to find out that quartus now generates a time limited sof. but you will see such an sof file in your project folder if it exists

if the sof you try to programm is broken, the programmer would tell you that and the config done pin wouldn't tell you that the configuration was successful.

so if the configuration is successful but it is the wrong image then there are 2 possabilities. the fpga is configured via jtag but with the wrong image, or the fpga is not configured via jtag but via on board configuration with the old image. so could you delete the on board configuration image or bring the board into a mode where it does not configure itself from epcs or cfi.

does the same problem exists when you configure via command line ?