TI-Nspire Calculators

So this website has step by step videos on how to downgrade/upgrade your TI-Nspire Calculator to OS 3.1 and  how to install Ndless.So All you have to do is have a TI-Nspire and a computer.So now, all you have to do is watch my videos!!! I compiled this blog because of how much time it took me to figure out how to do it all. So hopefully you should have no problems with doing this.