Author Topic: Nspire 2.1 out, don't install it!  (Read 84376 times)

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Offline critor

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Re: Nspire 2.1 out, don't install it!
« Reply #135 on: July 18, 2010, 04:42:43 pm »
critor, will this menu help in allowing downgrades?

Maybe... I'm testing all items.
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Offline jnesselr

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Re: Nspire 2.1 out, don't install it!
« Reply #136 on: July 18, 2010, 04:44:39 pm »
Yeah, but why not at least start the factoring of the keys with boinc like we did last time, and eventually as computing power increases (Well GPUs are really the powerhouses now) we will have it .... ok still in a looong time, but at least eventually we'll have it!
I don't disagree with that- I'm just saying that concentrating all the community's resources on it right now might not be a good idea. Because in the short term, hacking 1.7, or 2.0 or 2.1, will be much more beneficial. And probably easier/faster to do, too.
Short term yes, but TI will just as easily release a new update blocking it again.

Besides, letting your computer run all day is not that difficult.

@critor Good job!  You must tell how you found that.
« Last Edit: July 18, 2010, 04:45:17 pm by graphmastur »

Offline Deflect

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Re: Nspire 2.1 out, don't install it!
« Reply #137 on: July 18, 2010, 04:59:15 pm »
Exactly Graphmaster (and TC01) its like the PSP. (analogy time)

You can downgrade the PSP firmware, but until you are running custom firmware you cant run the latest games and enjoy all of the latest features while being able to run your own code. In a sense its the best of both worlds (No Hannah Montana references please)

Actually a custom OS will probably be the only way we can enjoy compatibility with their dock, the ability to run our own code, and .... whatever wonderful updates/features TI packs into their OS  [/SARCASM] It worked out for the PSP crowd, and assuming we can sign our own OS, or modify theirs then we can get to work on an easy, neatly packed piece of software for the whole TI community to enjoy. In short (what this means to the normal Joe Shmoe) if we can get their keys, then eventually kids will be able to Load apps and games on their calculator easily, and download a simple SDK for writing their own apps, and read up on tutorials.

Offline apcalc

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Re: Nspire 2.1 out, don't install it!
« Reply #138 on: July 18, 2010, 05:17:22 pm »
Am I correct in assuming that we only need to crack one key to send our own OS.  Or do we need several keys (I remember reading about several keys the nspire is protected with).


Offline Deflect

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Re: Nspire 2.1 out, don't install it!
« Reply #139 on: July 18, 2010, 05:20:24 pm »
We need to crack the private key still (I've been out the the loop for a while with work so bear with me if I'm utterly wrong) We have the public keys, all we need to do is kind out the private key (Not a trivial thing) 1024 bit RSA encryption So to factor that .... well that'll take a while. The only thing we can do its throw all the computing power we can at it for a few months (To a few years) cross our fingers and clusers and computing power increases will eventually crack it. Who knows, we could get lucky and crack it easily, but we wont know until we try ...

Offline critor

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Re: Nspire 2.1 out, don't install it!
« Reply #140 on: July 18, 2010, 05:25:55 pm »
@critor Good job!  You must tell how you found that.


Finally, there is no formatting option in the memory sub-menu from the diagnostic menu.

I can't reveal everything for the moment... You know I usually never keep such secrets for myself, but this time it's different.


You may read a condensed version of this discovery here:
http://ti.bank.free.fr/index.php?mod=news&ac=commentaires&id=839


I'll reveal everything as soon as I can.
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Offline jnesselr

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Re: Nspire 2.1 out, don't install it!
« Reply #141 on: July 18, 2010, 05:30:14 pm »
ooh.  UART and SD.  Wait, what?

Je ne parle pas français.  Je ne sais pas comment précise Google Translate est.

Offline Silver Shadow

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Re: Nspire 2.1 out, don't install it!
« Reply #142 on: July 18, 2010, 05:34:57 pm »
Google Translate sucks isn't very accurate. But don't worry, the text on the pics is enough to understand what's going on; it's just a bunch of hardware tests.
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Offline qazz42

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Re: Nspire 2.1 out, don't install it!
« Reply #143 on: July 18, 2010, 06:36:16 pm »
DJ, I am afraid so, if it wasnt for the fact you can put Cas on a non-CAS, all legal issues would be easily defeated, and ndless2 would be out.


Something I would like to see is a omnicalc for the nspire, what the nspire has now SUCKS, if this nspire omnicalc could add things like getkey and such.....

Offline Deflect

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Re: Nspire 2.1 out, don't install it!
« Reply #144 on: July 18, 2010, 07:13:58 pm »
DJ, I am afraid so, if it wasnt for the fact you can put Cas on a non-CAS, all legal issues would be easily defeated, and ndless2 would be out.

The thing is, that would require someone else breaking the law ... not us. If what were doing is completely legal then why does that affect us? If I made a blueprint for making a baseball bat then why cant I share it with my friends?  because someone might use that to kill someone? I think thats ridiculous.

Piracy is everywhere ...(analogy time again!)  Just because you can have custom firmware for the PSP that *can* allow piracy and ripped isos, far more people use it for legitimate reasons and to add ridiculously awesome new features that Sony would never take the time to add.

Fear of other people using it to break the law shouldn't stop us as long as WE don't!  :) 

Offline DJ Omnimaga

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Re: Nspire 2.1 out, don't install it!
« Reply #145 on: July 18, 2010, 07:23:33 pm »
True, it's like lawnmowers. Lawnmowers can be used to kill people. Should they make them illegal just because people use them for such purposes? Same goes with a certain type of glue. Some people used it to have effects like illicit drugs. Does that make that kind of glue illegal? No. They still sell it in stores.

If a tool to make third-party OSes or send any third-party code to the Nspire was made, it would not be illegal, thus, TI shouldn't be able to take it down. Their authors are not responsible for people who misuse their tools to pirate their CAS software, IMO. If WE do pirate their software, however, then that's another story.

@Critor btw I think some video games have some sort of maintenance/about menus too. Mystic Quest Legends for the Super Nintendo is an example, providing it's ran on a real Super Nintendo console (press SELECT+START in the menu. Doesn't let you do a lot, though). A bunch of games even have debug rooms, altough sometimes they are only available through cheat codes. I am curious what kind of stuff can be done through the Nspire diagnostic menu... it would be nice if some stuff could be executed, jailbreaking the machine (or opening it to run other programs allowing its jailbreak) through that menu.
« Last Edit: July 18, 2010, 07:27:10 pm by DJ Omnimaga »
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Offline quasi_Phthalo

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Re: Nspire 2.1 out, don't install it!
« Reply #146 on: July 18, 2010, 07:41:16 pm »
are NEW nspires (ie, the ones on the shelf at office depot) upgraded with OS 2.1 yet? Slash, is it too late for an interested programmer to buy their first nspire?

Offline DJ Omnimaga

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Re: Nspire 2.1 out, don't install it!
« Reply #147 on: July 18, 2010, 07:47:52 pm »
I doubt it, but I wouldn't be surprised if the ones that will come soon afterward did. It may depend of the store, though. Over here, it took until 2008 before they offer the first Nspire.
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Offline Snake X

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Re: Nspire 2.1 out, don't install it!
« Reply #148 on: July 18, 2010, 07:50:00 pm »
I just bought my first nspire... hope it doesn't come with the cursed os 2.1!

edit: yay 100'th post
« Last Edit: July 18, 2010, 07:56:45 pm by Snake X »
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Offline DJ Omnimaga

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Re: Nspire 2.1 out, don't install it!
« Reply #149 on: July 18, 2010, 07:51:59 pm »
From the IRC logs, it seems that you aren't getting the calc yet, tho? Did they ship it at all or something? I hope you didn't get scammed x.x

That said, if you get your calc, I hope it has an older OS and that it never had 2.1 on it before.
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