Try sending OS 1.7 (this is pretty stable and you can downgrade to it from 2.1).  Be sure to download a fresh copy from TI-Bank before sending.

Since there are many Ndless help/support threads popping up on Omnimaga, it might be best to consolidate all of the major questions/answers into one thread, which are listed below:

1. Where can I get a copy of OS 1.1?

Sadly, we cannot distribute copies of the TI-Nspire Operating Systems.  OS 1.1 is out there on the internet.  Just look around, you will eventually find it.

2. When will Ndless be released for an operating system other than 1.1?

Right now, official Ndless releases are only compatible with OS 1.1.  There are beta versions of Ndless that work on OS 1.4 and OS 1.7, but these versions are intended for developers and are not completely stable.  If you want, you can download the latest source code for Ndless here. (guest/guest to log in).  Please note that you must build this version yourself, as it is intended for developers and is not stable.

3. Can I install OS 1.1 on my touchpad Nspire?

Technically, you can install OS 1.1 on any Nspire, but OS 1.1 is not compatible with the touchpad keypad.  Therefore, OS 1.1 will not work if you have the touchpad keypad in the Nspire.  You will get an infinite reboot if you use the touchpad with any OS lower than 2.0.  See the answer to question 4 if you have installed OS 1.1 but you do not have a touchpad.

4. I installed OS 1.1 on my calc, but now it is infinitely rebooting!!!?

If you are using the touchpad keypad, this is caused because OS 1.1 is not compatible with the touchpad keypad.  If you get an infinite reboot, you should delete the OS like so:

Hold down the following keys until a menu pops up:

Clickpad: Home, enter, p, on
Topuchpad: Doc, ee, enter, on

Then, select option 2 (Delete Operating System)

Finally, resend your desired OS to your Nspire.

5. I tried installing Ndless on OS 1.1 using Ndless 1.1.1, but it did not work!?

This can be caused by a number of factors.  Most commonly, this is caused because Ndless is not completely compatible with Computer Link Software version 1.4.  Try downgrading to version 1.3, which can be downloaded here.

6. I installed OS 1.1 and Ndless 1.1.1, but now when I turn my calculator on, the screen does not turn on!

This is not caused by Ndless, but by a hardware change by TI that affects all TI-Nsprires running OS 1.1 made after 2007.  There is no known fix to this problem, but a workaround would be to have a Ndless document to reset the calc every time you turn it on, making the screen turn back on.  You can download a reset document, by calc84mainiac, here

7. I tried installing Ndless 1.7 on my calc, but it froze and random pixels lit at the top!

With the latest version of Ndless 1.7 (SVN Update 315 or later), this is not too much of a problem anymore.  Update to this version if using a older version.  Most of the time, Ndless will now automatically reset your calculator if the instillation fails.

8. I want to write programs for the TI-Nspire.  Where can I get the information I need to get started?

First, follow the tutorial in the Ndless ReadMe file in order to set up an Ndless development.  After you have the development environment set up, visit Hackspire, where you will find many resources documenting almost everything known about the Nspire!



If you have any additional questions or problems with Ndless, feel free to post them below and we will try to answer them promptly and add them to this original post.  Different issues can come up at any time, so don't feel bad about posting if your question is not in this post!

It might be good to move them to the sub-forum so new users can see them in case any of them answer their specific questions, but there are a lot of Ndless question threads, so it might be hard to move them all here.

Instead of moving them, maybe we can start a general Ndless help thread here?

Put this at the beginning of your code:

*(volatile unsigned*) 0x900B0000=0x00000002;
*(volatile unsigned*) 0x900B000C=4;

And at the end, put this to set it back to 90:

*(volatile unsigned*) 0x900B0000=0x00141002;
*(volatile unsigned*) 0x900B000C=4;


I think AP sciences are the hardest- my friends in AP chemistry complain all the time about their 4 hour labs....I'm glad I chose honors physics instead

4 hour labs!!! :O  Mine are only an hour and a half!  I could only imagine what their lab reports are like...

Quote from: MRide on November 01, 2010, 03:37:31 pm

Congrats everyone!  After hell year (aka junior year) I might apply.

Junior year sucks. I'm actually in the middle of it too, but currently dominating my 4 AP classes

Agreed.  But my school only offers 3 APs.

I thought there was an update, but instead I lost the game, 3 times

This time, there is an update, but, just to keep the record:  The Game, The Game, The Game!

Do I see animated tiles?  It is a kinda poor implementation of this, but it is a start!