Thanks for binary patching in the new display driver, it works fine except for the saving of screen dumps etc as described. And the BenF software makes such a difference to the functionality of the scope, further the manual is good (can’t say the original one is very usful).
The process starts alright ie the software is creating the correct file but it breaks when the screen shall be saved to this file. This is not to wonder as the screendump is no longer the one that FredF wrote the export routines for, the display hardware and therefore driver is different. So the SD card routines are most likely OK, what needs to be changed/patched is the screendump stuff reflecting the new driver, then the closing of the file should be successful as well, now the whole thing stops by derailing the processor at the write process.
BR Ferpe