If not already done, you can probably upgrade your TI-Nspire CX CAS prototype and every other prototype the same way, by just renaming the "Developer Unit" folder if present.
If this folder is not present, then it'll be much more complicated...
If not already done, you can probably upgrade your TI-Nspire CX CAS prototyp ...
A pleasure.
while....all the folder is absent now. the folder in black&whites were formatted by the seller
CX CAS DVT was done by myself.(uploading different OSes,you know)
and these prototypes are working well