to reduce risks of having to reformat after an Ndless program crash.
Dawat ? When Ndless crashes a simple reboot is needed. I never heard of an Ndless program that forces you to reformat when it crashes...
When I used my TI-Nspire on a regular basis to play games, I had to reformat it at least once a month.
No need to reformat for that, even if I dont get how you manage to make it crash so often ...
Next time, just launch the diagnostic software and reset (it auto-fixes itself). Life saver.