Note that the Workaround for renaming the Loader file to just 0x requires the correct loader for the MCU be used.I found this today when I switched project and needed to erase the Read Protection Bytes. Errors out with the wrong loader. Works only wi...

Exactly same way I got mine to connect.Same thing Jyrki Koivisto said to do in his post. However, I think you have to have the correct CPU type renamed. Not just any as he said.Works for now as a work around. Would like to see a fix. More than happy ...

I too have the same issue. I have 2 computers both running Debian 12. Cube Programmer v2.18 is installed in home folder of both.In my case, computer 1 works fine. Computer 2 does not work. I get the exact same loader error.Computer 2 that does not wo...