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Author Topic: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless  (Read 30555 times)

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Offline daniel12997

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Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« on: February 21, 2014, 08:07:04 am »
I got a Ti-nspire and "Upgraded" to the latest OS accidentally . I then tried installing a previous version and it gave me the error: "The Operating system file is corrupt or invalid. Please go to education.ti.com to get a new OS file." I am wanting to install ndless to play games. I am willing to do a little coding if that will fix it.
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Offline Springyboy

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #1 on: February 26, 2014, 09:59:16 pm »
Hi Daniel 12997,

Welcome to Omnimaga.

Unfortunately ndless is not currently compatible with os 3.6, and there is no simple way to downgrade. Unless you have an a-I version cx cas or an older model, then their is no way to downgrade. If you do, then look at this thread to downgrade. http://ourl.ca/20292

Otherwise, a new ndless is in development. Take a look here for more info http://ndlessly.wordpress.com
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Offline Streetwalrus

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #2 on: February 27, 2014, 02:53:57 am »
Which OS did you have initially ?
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Offline Springyboy

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #3 on: March 17, 2014, 04:02:21 am »
Quote from: daniel12997 on February 21, 2014, 08:07:04 am
I got a Ti-nspire and "Upgraded" to the latest OS accidentally . I then tried installing a previous version and it gave me the error: "The Operating system file is corrupt or invalid. Please go to education.ti.com to get a new OS file." I am wanting to install ndless to play games. I am willing to do a little coding if that will fix it.

Just go here http://www.omnimaga.org/news/ndless-3-6-becomes-reality!/
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Offline macanhhao

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #4 on: May 18, 2014, 11:59:22 pm »
How to downgrade Ti-Nspire CX 3.6 (Non CAS)  to 3.2 CAS O.S

Current:
- Ti-Nspire CX 3.6 (non CAS)
Now, You want to downgrade Ti-Nspire CX CAS 3.2. Ok!

Step 1: Download [ nLaunchy 3.2/3.6 switching pack ]
Link: http://tiplanet.org/forum/viewtopic.php?f=57&t=13213

Extract: NL_3.2-3.6_switchpack\TI-Nspire CX\ndless
- Send : the  [ndless] folder =>>> Ti Calculator
- On Ti Calc / Open [ My Documents ] //// you see   [ndless] folder.  pess Enter 'ndless_installer' and then [ Y ]
After that, press [ 2] and [ 2 ] ....and [ 0 ] to complete installation.
Exit


Step 2: Download ROM 3.2 Ti-Nspire CX CAS
- Run file: TNOC_en.exe  Link: http://tiplanet.org/forum/archives_voir.php?id=1922&short=1
check Delete boot2
- Rename new file: TI-NspireCXCAS-3.2.3.1233_b.tcc to [ phoenix.tns ]- Copy file:  phoenix.tns to [ NL_3.2-3.6_switchpack\TI-Nspire CX\non-CAS\nlaunch ] on PC.......overwrite
- Copy [ nlaunch ] folder in [ NL_3.2-3.6_switchpack\TI-Nspire CX\non-CAS\nlaunch ] to Ti Calculator
- Press [ Reset ] button back: Operating system not found. Install now.
- Connect and copy file:  nlaunch.tco  in ( NL_3.2-3.6_switchpack\TI-Nspire CX ) on PC. It will reboot

Waiting and using

Note:
If there're troubles. You should do:
1.  Press and Hold (4 keys): Doc + Enter + Ee and Release [Reset] Button
[ 2 ] and [ 1 ] ....and then [Enter]
You can install new OS

2. With fail belong to NSC MP V4 Diag. You can do:
Press and Hold (4keys): Esc + Menu+-and Release [Reset] Button to disable diag test

3. Everything...You can do:
Release [ Battery rechagreable ] about 3 - 5 second to clear fail


Thanks!
I'm from Vietnam. So i don't write Ennglish well. Sorry!
You can send my Email: tichthien@outlook.com
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Offline Tony Navazio

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #5 on: March 01, 2015, 05:51:32 pm »
This worked flawlessly for me! Thanks macanhhao!
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Offline FrancoDN

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #6 on: July 04, 2015, 08:25:11 pm »
I have a TI Nspire CX nonCAS hardware version D boot1 3.0.99 boot2 3.10.16 running a working CAS OS 3.1.0.392
I would like to Ndless it.

If I send to my calculator the .tcc installer the computer tells me it’s a “wrong handled type for the OS being sent”.
If I send to my calculator the .tco installer the OS installation goes forever, it never ends, there is a window in the Student Software with a loading bar that does not move on from 60%.

Is there a way I could proceed??

Regards.


EDIT: Problem solved. I didn’t know that Nlaunch has it’s own Ndless installer.
I just needed to put the ndless_resources.tns into ndless folder and reboot the handheld. That easy.
« Last Edit: July 05, 2015, 09:47:52 am by FrancoDN »
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Offline R1CKSO

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #7 on: July 21, 2015, 08:27:14 pm »
Hello, guys this is my first post as well I have followed the tutorials on how to load CAS software to non CAS sucessfully and have ran 3.1 and 3.2 CAS OS positevely and trough my exams! but now I want more LOL I want to install ndless 3.1 as the previous post said, I can't get the ndless installer to complete the install it stays on 60% and no more, even after sending the correct .tco installer and ndlessresources file to my handheld.
What can I do?

THANKS IN ADVANCE! this is a great forum
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Offline Adriweb

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #8 on: July 21, 2015, 09:53:45 pm »
There are now Ndless 3.6 and even 3.9, pick the one corresponding to your version.
If you have 4.0 however, you're stuck for now.
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Offline R1CKSO

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #9 on: July 22, 2015, 11:12:31 am »
Maybe I didn't explain myself very well, the problem is that im currently running 3.1.0.392 CAS OS that I loaded with nlaunch to my C series non CAS, so according to my logic that version is adequate for running ndless 3, so what I did was created an ndless root folder, dragged the ndless _resources.tns file and then dragged the installer to that dame folder, the install begins I get the OS warning, click yes then the progress bar gets stuck in the same place always and never completes.
Hope this explains my issue a little better,and thanks for the support!
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Offline Vogtinator

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #10 on: July 23, 2015, 01:14:34 pm »
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Offline R1CKSO

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Re: Downgrade Ti-nspire OS From 3.6 to 3.1 for ndless
« Reply #11 on: July 24, 2015, 03:45:22 pm »
Pm sent
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