[FR/EN] Downgrade Nspire OS 3.9 CX / ClickPad

→ **MyCalcs** profile · by **Cionow** » 16 Aug 2015, 02:36

Alright I'll try them, thanks!

→ **MyCalcs** profile · by **Cionow** » 16 Aug 2015, 03:02

is it still possible to downgrade though as I know it is recommended and I just don't want to encounter annoying problems

My calculator programs · by **Adriweb** » 16 Aug 2015, 03:04

No, you cannot downgrade as your hardware revision is too recent (maximum is 'S') and older OSes won't work normally/at all.

→ **MyCalcs** profile · by **cataklix** » 07 Sep 2015, 18:02

Bonjour,
J'ai une révision U. si je réalise le downgrade, que va t il se passer ? Sera t elle non fonctionnelle, ou elle marchera très mal ?

→ **MyCalcs** profile · by **critor** » 07 Sep 2015, 18:12

Trop récent.

Toutes les révisions S+ (ce qui inclut la U) ne font pas tourner correctement les version 3.9.0 et inférieures.
Donc il te faut rester avec une version 3.9.1 ou supérieure.

→ **MyCalcs** profile · by **FriedTM** » 26 Sep 2015, 20:55

Thank you for providing this downgrade, however currently there is no way that I can find for a ti nspire mono chrome touch pad running 3.9 to get ndless. I would like to know if there are plans to rectify this or should I just give up? Thank you for your time and effort.

My calculator programs · by **Adriweb** » 26 Sep 2015, 20:56

For now, Ndless 3.9 is not available for Touchpad, sorry.

→ **MyCalcs** profile · by **FriedTM** » 26 Sep 2015, 21:19

Adriweb wrote:For now, Ndless 3.9 is not available for Touchpad, sorry.

yeah :/ I was just hoping something was in the works, its rather disheartening when all you can do is wait.

→ **MyCalcs** profile · by **matteob92** » 04 Dec 2015, 21:15

Guys, please help me!
I was on 3.9.1.38 OS version on my nspire CX CAS, I installed DowngradeFix 3.9 'downgradefix391cx.tns' as advised but then TI-Nspire Computer Link Software version 3.9.0.455 didn't let me installing OS 3.6.0.550.
So I first tried to perform a 'reset' and go back to step 3, but only the same : then I went to maintenance menu and deleted OS and documents using '4' and then '1' button.
The problem is that pc software doesn't recognize yet the 3.6 OS file to send to the TI, I've tried also entering into Diagnostics menu and selecting '0. Additional function' -> 'Go to OS mode' and performing a reset but still nothing.

How can I solve? What's my error? Till installation of a new OS my calculator is useless (I'm using the original cable included into the box on a laptop with Windows 7 64 bit), I need you

EDIT : I can add that my hardware revision is P-0612E as shown there (from what I had read would be compatible with downgrading)

And the maintenance menu shows'Operating System not found. Install OS now.'like into the image

How can I force Computer Link into installing an OS version that I want to select manually, and not the last 4.X available?