Safe way to continue / recover is to get the simucube_bootloader_and_reset_all_settings.dfu file from 0.50.3, use dip switch method to put the bootloader in the Simucube, and then use 0.11.2 to set up the system.
Which tool I have to use to "install" the simucube_bootloader_and_reset_all_settings.dfu of the 0.50.3? Do you have a link to follow instructions and tool to use?