You would think, Aliexpress, a few years ago now for me, was totally averse to selling anything with 1.1f it seemed, probably still are for all I know, there was a larger code break going from 0.92 if I recall correctly, so a lag in support is understandable, especially if English is not familiar, yet laser support was bolted on, in whatever way they could I guess. I never knew what changes were done to the firmware, I still have 0.92 on my drawbot, no idea what pins are used for input output or what mods was enabled for the novel pully movement system, but it works, so I didn’t try to upgrade it.
Turn laser support off isn’t intuitive when trying to troubleshoot lasers, but I am pretty sure I tried everything, including $32=0 and 1.1f on the laser before it blew up.
Cheers!