Author Topic: New CX CAS OS......Worth upgrading?  (Read 25720 times)

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Offline stefos

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New CX CAS OS......Worth upgrading?
« on: December 10, 2013, 04:47:44 pm »
Hi everyone,

Sooo...3.6  Is this worth downloading AND will it conflict with any really good software created by some of your folks?

Thanks,
Stefos

Offline Hayleia

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Re: New CX CAS OS......Worth upgrading?
« Reply #1 on: December 10, 2013, 05:06:40 pm »
Every news post about the 3.6 says the same thing : it blocks everything (Ndless and what it gives, nLaunch, downgrading) and since TI provided a lot of effort in that, they didn't improve anything else that much.
So, not worth downloading and conflicts (like big conflict) with good (like very good) software.

This except if you have 3.2.4 and J-hardware revision. In that case, you don't have Ndless and such so you may think "I don't care". But it is still not advised to upgrade because of the lack of useful new features and because even if downgrading is impossible on both OSes, it is still more possible with 3.2.4 (due to it having less protections).

Also, if you have 3.1 (or a 3.2 that is not 3.2.4), there's the possibility to install 3.6 without screwing everything up, and also to install a switching pack that would allow you to switch between 3.1 and 3.6 without needing a computer. But you won't manage that with the usual way of upgrading, you need to follow precise steps.
I own: 83+ ; 84+SE ; 76.fr ; CX CAS ; Prizm ; 84+CSE
Sorry if I answer with something that seems unrelated, English is not my primary language and I might not have understood well. Sorry if I make English mistakes too.

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Offline Adriweb

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Re: New CX CAS OS......Worth upgrading?
« Reply #2 on: December 10, 2013, 05:12:23 pm »
That ^, and also you can find TI's official changelog here :
http://education.ti.com/en/us/whats-new

So... the changes are mostly for the UI, and a tiny bit on features/fixes. And, well, anti-downgrade etc.
Also, an improvement on images on Lua scripting, which is welcome.
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Offline stefos

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Re: New CX CAS OS......Worth upgrading?
« Reply #3 on: December 10, 2013, 09:51:54 pm »
Every news post about the 3.6 says the same thing : it blocks everything (Ndless and what it gives, nLaunch, downgrading) and since TI provided a lot of effort in that, they didn't improve anything else that much.
So, not worth downloading and conflicts (like big conflict) with good (like very good) software.

This except if you have 3.2.4 and J-hardware revision. In that case, you don't have Ndless and such so you may think "I don't care". But it is still not advised to upgrade because of the lack of useful new features and because even if downgrading is impossible on both OSes, it is still more possible with 3.2.4 (due to it having less protections).

Also, if you have 3.1 (or a 3.2 that is not 3.2.4), there's the possibility to install 3.6 without screwing everything up, and also to install a switching pack that would allow you to switch between 3.1 and 3.6 without needing a computer. But you won't manage that with the usual way of upgrading, you need to follow precise steps.

Hi,

Yeah, my CX CAS had 3.2.4 on it :(

I downloaded & upgraded to 3.6 man.........DANG

Well, I hope that the MePro "like" program being developed will be compatible with this.

I'd be cool with it.

By the way, I don't know what "Ndless" is and am not a Lua coder.....
Did I just screw myself or not?

Thanks & please Forgive my ignorance.....I returned my "new" calculator from The Bach company
back to TI & the model they gave me had the 3.2.4 OS on it....I don't know if it's the J hardware version..
How can I tell & would this help me insofar as programs for the CX CAS is concerned?

Stefos

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Re: New CX CAS OS......Worth upgrading?
« Reply #4 on: December 10, 2013, 11:00:57 pm »
With 3.6, you get the highest compatibility with Lua programs, but you permanently lose the right to use Ndless 3.1. I don't recommend upgrading.

As for the hardware revision, check the back of your calculator for the serial number. The end is the most important thing. For example, mine ends with P-0411B, meaning that it was manufactured in April 2011 and is hardware revision B.
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Offline JosJuice

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Re: New CX CAS OS......Worth upgrading?
« Reply #5 on: December 11, 2013, 10:34:18 am »
By the way, I don't know what "Ndless" is and am not a Lua coder.....
Did I just screw myself or not?
Ndless is an exploit that allows running native code, so you need it if you want to run programs written in C/assembly.

Offline Hayleia

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Re: New CX CAS OS......Worth upgrading?
« Reply #6 on: December 11, 2013, 10:49:33 am »
^That. Concretely, Ndless is needed to run Doom, the GameBoyAdvance emulator and to read your converted pdfs on your calculator, among other things.
I own: 83+ ; 84+SE ; 76.fr ; CX CAS ; Prizm ; 84+CSE
Sorry if I answer with something that seems unrelated, English is not my primary language and I might not have understood well. Sorry if I make English mistakes too.

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Offline stefos

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Re: New CX CAS OS......Worth upgrading?
« Reply #7 on: December 11, 2013, 03:35:54 pm »
With 3.6, you get the highest compatibility with Lua programs, but you permanently lose the right to use Ndless 3.1. I don't recommend upgrading.

As for the hardware revision, check the back of your calculator for the serial number. The end is the most important thing. For example, mine ends with P-0411B, meaning that it was manufactured in April 2011 and is hardware revision B.

My version of hardware ends in E.......Can I still run Ndless? :)

I do have the 3.6 OS now though.

Stefos

Offline Hayleia

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Re: New CX CAS OS......Worth upgrading?
« Reply #8 on: December 11, 2013, 04:35:50 pm »
I asked Critor on TI-Planet, he says that it is still possible through a USB/TTL interface to reprogram the Boot2 3.1 via the dock connector (and gain access to Ndless after installing OS 3.1).
But if you want more details, don't ask me, ask him :P
I own: 83+ ; 84+SE ; 76.fr ; CX CAS ; Prizm ; 84+CSE
Sorry if I answer with something that seems unrelated, English is not my primary language and I might not have understood well. Sorry if I make English mistakes too.

click here to know where you got your last +1s

Offline stefos

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Re: New CX CAS OS......Worth upgrading?
« Reply #9 on: December 11, 2013, 04:59:24 pm »
I asked Critor on TI-Planet, he says that it is still possible through a USB/TTL interface to reprogram the Boot2 3.1 via the dock connector (and gain access to Ndless after installing OS 3.1).
But if you want more details, don't ask me, ask him :P

Hi & thank you for your kindness in asking him!

I emailed him privately as I dont' know how to change the TI Planet website to display in English.
(Maybe it never was meant to be "viewed in English".....I don't know)

Anyway, Using programs written in C/Assembly & reading converted .pdf's are what really matters to me
insofar as Ndless is concerned.

Why would TI "block" a program like Ndless?  I thought they were for this type of thing? Does it compete with their apps?
The TI CX CAS has ZERO apps you can buy & TI Tech Support never said anything about any Mechanical Engineering app
to be released (which is something I'm also interested in) at all!

Thanks,
Stefos
« Last Edit: December 11, 2013, 05:00:46 pm by stefos »

Offline critor

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Re: New CX CAS OS......Worth upgrading?
« Reply #10 on: December 11, 2013, 06:34:15 pm »
Hi,


Some TI-Planet content is available in both english and french.
It should default to english for guests when their computer language is not french.

Once regestired, you can set your preferred language in your user profile.

Anyway, you may ask your question in both french and english - most of us speak english too over there :)



If you did update your TI-Nspire HW-E to 3.6, then your Boot2 was also updated to 3.2.4.

To freely read PDF you need Ndless which requires OS 3.1
But OS 3.6 forbids you to install OS 3.1.
Thus you need Nlaunch, which makes Boot2 ignore the minimal installable OS version set in memory.
But Nlaunch only works with Boot2 3.1.

You then need to reflash Boot2 3.1.
This requires an external hardware: an USB/TTL interface:


By putting the TI-Nspire in Boot2 receive mode (Doc+Enter+2 while rebooting) and connecting ground, Tx and Rx to three contacts on the TI-Nspire bottom J01/Dock connector, you can reflash Boot2 3.1 with the Hyperterminal software coming with Windows up to Vista.


After this is done you can litterally do everything you want with your calculator, and we have comprehensive tutorials in both french and english for each step :)
« Last Edit: December 11, 2013, 06:37:21 pm by critor »
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Offline stefos

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Re: New CX CAS OS......Worth upgrading?
« Reply #11 on: December 11, 2013, 06:54:59 pm »
Hi,


Some TI-Planet content is available in both english and french.
It should default to english for guests when their computer language is not french.

Once regestired, you can set your preferred language in your user profile.

Anyway, you may ask your question in both french and english - most of us speak english too over there :)



If you did update your TI-Nspire HW-E to 3.6, then your Boot2 was also updated to 3.2.4.

To freely read PDF you need Ndless which requires OS 3.1
But OS 3.6 forbids you to install OS 3.1.
Thus you need Nlaunch, which makes Boot2 ignore the minimal installable OS version set in memory.
But Nlaunch only works with Boot2 3.1.

You then need to reflash Boot2 3.1.
This requires an external hardware: an USB/TTL interface:


By putting the TI-Nspire in Boot2 receive mode (Doc+Enter+2 while rebooting) and connecting ground, Tx and Rx to three contacts on the TI-Nspire bottom J01/Dock connector, you can reflash Boot2 3.1 with the Hyperterminal software coming with Windows up to Vista.


After this is done you can litterally do everything you want with your calculator, and we have comprehensive tutorials in both french and english for each step :)

Hi,

Thank you for replying!

I went to TI Planet & set my default language to British English but the page still shows up in French!

Also, I don't know how to rewire the hardware of the CX CAS...Is this what the USB/TTL interface is supposed to do?

I'm a little confused.

Also, After I do the reflashing, Can I run programs in C/assembly?

I don't want to destroy my calculator.

By the way I have Windows 7 Professional, Will this have the "Hyperterminal" software you mentioned?

Thank you,
Stefos
« Last Edit: December 11, 2013, 07:14:29 pm by stefos »

Offline Legimet

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Re: New CX CAS OS......Worth upgrading?
« Reply #12 on: December 11, 2013, 06:57:05 pm »
You didn't update to 3.6, did you? If not, just download Ndless and follow the user guide. critor's instructions were only meant to be used if you updated to 3.6 and thereby updated to boot2 3.2.4.

Offline stefos

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Re: New CX CAS OS......Worth upgrading?
« Reply #13 on: December 11, 2013, 07:20:27 pm »
You didn't update to 3.6, did you? If not, just download Ndless and follow the user guide. critor's instructions were only meant to be used if you updated to 3.6 and thereby updated to boot2 3.2.4.

Yeah, I did update to 3.6 on the handheld.

Man, I have a feeling that If I try to do the above, my 3.6 OS & the reflashed Boot 2 3.1 will ALL be shot! LOL
This would NOT make me a happy camper.

I'm not an electronics dude so I don't know what he means.

Thank you,
Stefos
« Last Edit: December 11, 2013, 07:22:00 pm by stefos »

Offline critor

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Re: New CX CAS OS......Worth upgrading?
« Reply #14 on: December 11, 2013, 07:30:48 pm »
It's just about connecting 3 wires - no need to know anything about electronic and I'm not an electronic dude at all either.


Yes, after reflashing Boot2 3.1, installing Nlaunch, launching OS 3.1, and installing Ndless, you'll be able to run C/assembly programs and PDF/image readers.

Boot2 reflashing apart, other steps only use softwares, are easy and pretty well documented online.
« Last Edit: December 11, 2013, 07:31:59 pm by critor »
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