Hello
I have recently updated my calculator (Nspire CX CAS) to the 4.5.1 version but I found out that Ndless isn't available on this version.
How can I downgrade to an older version without Ndless

I have recently updated my calculator (Nspire CX CAS) to the 4.5.1 version but I found out that Ndless isn't available on this version.

How can I downgrade to an older version without Ndless
