Author Topic: Quick question regarding TI-nspire CX  (Read 7568 times)

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Offline aeTIos

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Re: Quick question regarding TI-nspire CX
« Reply #15 on: September 22, 2014, 05:26:34 am »
Good job getting it installed! Glad you got an old HW revision so you could downgrade it. It must suck to be stuck on 3.9 and never getting to run any of the awesome ndless programs.
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Offline knux03

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Re: Quick question regarding TI-nspire CX
« Reply #16 on: September 22, 2014, 09:57:16 am »
Thnk god this is still up Hi my name is knux03

Situation i have a P-0911D TI-nspire cx
how can i downgrade from 3.9? a friend of mine :banghead:
updated it by mistake and ended up having 3.9 :mad:
so i was wondering what do I have to do? :w00t:

Offline DJ Omnimaga

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Re: Quick question regarding TI-nspire CX
« Reply #17 on: September 22, 2014, 01:45:33 pm »
In such case you would need to use the RS232-TTL adapter method. The extra hardware has to be purchased online. Unfortunately there are currently no tutorial to downgrade from 3.9 yet (they're all for 3.6 it seems) so you would have to search through recent forum topics in this section or someone might have to help if they are still around.
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Offline donbirdy

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Re: Quick question regarding TI-nspire CX
« Reply #18 on: September 23, 2014, 06:05:56 am »
Thnk god this is still up Hi my name is knux03

Situation i have a P-0911D TI-nspire cx
how can i downgrade from 3.9? a friend of mine :banghead:
updated it by mistake and ended up having 3.9 :mad:
so i was wondering what do I have to do? :w00t:




Hi knux03.


I can provide some direction on this.


You will need to purchase one of these:




http://www.amazon.co.uk/FT232RL-Serial-Adapter-Module-Arduino/dp/B00HSX3GT4/ref=sr_1_11?ie=UTF8&qid=1411466718&sr=8-11&keywords=FT232

Offline donbirdy

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Re: Quick question regarding TI-nspire CX
« Reply #19 on: September 23, 2014, 06:08:13 am »
And solder up accordingly:




Offline heiki

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Re: Quick question regarding TI-nspire CX
« Reply #20 on: November 10, 2014, 06:47:51 am »
Hi! I'm new and I have googled a lot, and in need of some help.


I have a CX with the final letter C and I want to install CAS on the calculator.
When I bought it from a friend, it had software version 3.9... I have managed to downgrade it to 3.1.0.392, using the information available here in the forum. I'm currently unable to intall the CAS software on the device.


I understand that in order to be able to install the CAS softvare version I have to flash the boot2.  (Currently I have Boot1=3.0.99 and Boot2=3.24.7)


I will get an USB-TTL adapter soon but I haven't found information on the bersion of boot2 I should use and also some manual on how exactly to flash the device (programs/steps/etc).


Can anyone help, I would really appreciate it!
Heiki

Offline aeTIos

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Re: Quick question regarding TI-nspire CX
« Reply #21 on: November 10, 2014, 10:43:35 am »
Hi Heiki, welcome to the forums! You will need to use Nlaunch to install the CAS software. You don't need to flash the boot2, I think. If I'm mistaken, someone please correct me.

on a side note could the above post be moved to its own thread and the image 2 posts up be downscaled? :|
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Offline heiki

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Re: Quick question regarding TI-nspire CX
« Reply #22 on: November 10, 2014, 01:53:36 pm »
I tried to use Nlaunch, the calc will not accept the file. I'm pretty sure the boot2 needs to be flashed. If I'm wrong, I'm very happy  :)

Offline Vogtinator

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Re: Quick question regarding TI-nspire CX
« Reply #23 on: November 10, 2014, 02:09:40 pm »
You can flash boot2 3.1 (I believe) using nsNandMgr, available on ti-planet.

Offline heiki

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Re: Quick question regarding TI-nspire CX
« Reply #24 on: November 11, 2014, 05:11:37 am »
Thank you!


I flashed the boot2 using nsNandMgr and I'm now running CX CAS 3.1.0.392 on the CX calc :)
Boot2 version 3.10.16.

Do we have any approved updates or should I stick to this OS version now?

I'm a happy camper now, thank you again :)

Offline Hayleia

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Re: Quick question regarding TI-nspire CX
« Reply #25 on: November 11, 2014, 05:27:54 am »
If you care both about Lua programs and Ndless, you can install a switching pack (see this a a sort of dual boot) on your calc.
3.1 CAS / 3.2 CAS
3.1 CAS / 3.6 non CAS
This because 3.2 and 3.6 add some features to Lua but 3.2 doesn't support Ndless and 3.6 CAS isn't possible with nlaunch.

If you only care about Lua, you can just put the 3.2 CAS on your calc.

If you only care about Ndless, you can stay as you are with just the 3.1 CAS on your calc.

If you only care about the CAS and not about Ndless nor Lua, same, you're fine with the 3.1 or you can upgrade to 3.2 CAS.

And if you cared about Lua and Ndless but not the CAS, you could have put just the 3.6 non CAS but that's probably out of question.
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