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Offline Aspiring

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Getting a cx
« on: March 11, 2014, 03:32:18 pm »
Hello everyone!

I was thinking of buying a used cx (non-cas) and then putting the cas os on it using ndless and nlaunch.  I do need the cas os but I also want to have a ordinary cx so that I could still take a class from teachers who prohibit cas's (I have a sense of pride so I won't use it to cheat on a test. ;) ).  So my question is is this a good idea?  I do not want to have to have two nspire calculators (one cas and one non-cas).  Has anyone done this kind of thing before?

I hope my question makes sense.  :/
« Last Edit: March 11, 2014, 03:34:25 pm by Aspiring »
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Offline Vogtinator

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Re: Getting a cx
« Reply #1 on: March 11, 2014, 05:47:56 pm »
Buying a cx cas wouldn't make a lot of sense as you couldn't use it at school.
I'd say go for dual boot with nlaunch, but put OS 3.6 non-cas on it so your teacher can see that you're not cheating.
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Offline Hayleia

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Re: Getting a cx
« Reply #2 on: March 11, 2014, 06:04:16 pm »
Be sure to get a compatible hardware revision though when buying.
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Offline DJ Omnimaga

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Re: Getting a cx
« Reply #3 on: March 11, 2014, 06:18:52 pm »
Although doing that with a brand new calc will be impossible since you are not allowed to open the package in the store and you don't know what you are buying until you open it.
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Offline Hayleia

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Re: Getting a cx
« Reply #4 on: March 11, 2014, 06:20:32 pm »
Yeah, that could be hard in stores :P
But if you buy it second hand, then you can check. You can check the OS too (3.6 is more annoying to downgrade).
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I own: 83+ ; 84+SE ; 76.fr ; CX CAS ; Prizm ; 84+CSE
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Offline Aspiring

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Re: Getting a cx
« Reply #5 on: March 12, 2014, 12:37:19 pm »
Thanks for your advice! I will get a non cas cx then and make sure it is between hardware revisions A-I.  (I have an arduino so I can reflash boot 2 if the calc comes with os 3.6).

One more question.  If the calc has os 3.2 or lower I can also assume that it is between hardware revisions A-I right?
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Offline Vogtinator

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Re: Getting a cx
« Reply #6 on: March 12, 2014, 12:45:58 pm »
If it has 3.1 on it it will work out-of-the-box. 3.2 runs on HW J and K as well, so that's not a reliable indicator.
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Offline Aspiring

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Re: Getting a cx
« Reply #7 on: March 12, 2014, 01:15:01 pm »
Thanks!  :D
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Offline Hayleia

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Re: Getting a cx
« Reply #8 on: March 12, 2014, 03:06:47 pm »
From what I understood, it also depends on which 3.2 you are talking about. 3.2.3 is more friendly (you can downgrade from it) but 3.2.4 is not (more friendly than 3.6, so with a good HW revision, you can still manage, but not as easily as with 3.1 or 3.2.3).
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I own: 83+ ; 84+SE ; 76.fr ; CX CAS ; Prizm ; 84+CSE
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Offline Aspiring

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Re: Getting a cx
« Reply #9 on: March 12, 2014, 03:28:27 pm »
I think I understand.  If a cx is after hardware revision "I" then it is capable of running the boot 2 that is required for ndless.  So if a calc has an os below 3.2.4 it can for sure run ndless (but boot 2 may need to be reflashed).  I wonder what hackish thing TI had to pull off to make ndless boot2 not run but later boot2's run.  ??? <_<   Anyway... thanks again!
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