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03 Oct 2008 04:34:31 pm by brandonw
All indications are that it's the same aside from the ability to disconnect the keypad.

04 Oct 2008 10:06:12 am by JoostinOnline
FloppusMaximus wrote: That's an interesting point.  Is the hardware actually the same in all other respects (that we know of)?  If so, I guess that could partly explain TI's anti-programming attitude. [post="127533"]<{POST_SNAPBACK}>[/post] I don't know if this helps: http://www.datamath.org/Graphing/NSpire_CAS.htm http://www.datamath.org/Graphing/NSpire.htm

04 Oct 2008 05:54:20 pm by brandonw
I'm not suggesting it's as simple as sending the TNO file to the Nspire, but not outside the realm of possibility to one day get the CAS working on it.

04 Oct 2008 10:18:05 pm by TylerMcL
I just thought of this though... If teachers/administratives found out that we had the ability to install a CAS (one day?) onto a regular nSpire and hack it, they may not let us use this beast on tests and standardized test, such as the ACT. When this thing is finally hacked, I'm gonna make a program that made it look like you were in "testing mode" (which doesn't let you access any of your programs or documents), but you're really not ...Although I think they call this cheating

05 Oct 2008 12:42:10 am by magicdanw
Remember, the distinction that makes a calculator illegal to use on a test is not its capabilities, but whether its keys are arranged alphabetically.

05 Oct 2008 07:27:58 pm by brandonw
TylerMcL wrote: I just thought of this though... If teachers/administratives found out that we had the ability to install a CAS (one day?) onto a regular nSpire and hack it, they may not let us use this beast on tests and standardized test, such as the ACT. When this thing is finally hacked, I'm gonna make a program that made it look like you were in "testing mode" (which doesn't let you access any of your programs or documents), but you're really not ...Although I think they call this cheating [post="127567"]<{POST_SNAPBACK}>[/post] You can do this now if you have a spare 84+/SE beside you. You can write an 84+/SE direct USB program to fake a PC transfer, so the Nspire will unlock itself. When you use Press-to-Test on the 84+SE keypad, you won't be able to snap in the Nspire keypad, you'll get a "Wrong keypad" message. We can get around this even now.

05 Oct 2008 08:25:42 pm by TylerMcL
you've got an excellent point there! I never thought of that. A keep forgetting that a calculator can be made into any program possible, really 0x5 Oh, and I was reading about people who've bought an TI-89 and put it into a TI-84+ case. Not to get off topic really, but how hard is it to do this? I wonder how hard it would be just to put a nSpire CAS into a Non-CAS. I can't imagine the keypad switch being too big of an issue

05 Oct 2008 09:16:17 pm by nitacku
Putting an 89 titanium into an 84 case is very easy. The only difficult part is trying to remove those tiny torx screws. Most of the buttons line up correctly, there are a few that you have to wiggle around a little bit until it makes a connection.

10 Oct 2008 01:29:40 pm by FocusedWolf
Seriously let's just get ti voyagers... i mean more memory... runs ti89 programs... what more could we want... their's probably even a way to overclock it 0x5 Now as far as the ti-nspire cas goes... i for one would love to donate free cpu time towards cracking the drm and i'm sure so would EVERYONE!!! that visits ticalc.org and other calc sights. It'd also be a real symbol of the community that TI wants to a on. For example: if we crack their drm then they will require OS updates down the road to fight it... but at the same time any software built for the older os will fail (so eventually one day when theirs official asm programs being sold by TI, what are they gonna do.. .force a new version of all of them for every ti-nspire os... ya right... so it looks like it'll work. I say we do it with brute force... we attack at dawn!!

10 Oct 2008 03:32:03 pm by FloppusMaximus
I agree!!! Everyone, pick your favorite algorithm and start trying random keys! Hurry up, or we won't finish before the heat-death of the universe. Or before Jesus gets back, whichever.

10 Oct 2008 11:29:38 pm by TylerMcL
0x5. Or we could just use a program that has already been made for something like this? I've got to believe that someone has made a developing algorithm program that would try almost every algorithm possible. If not, we humans really are doomed But yeah, I just say we use brute force to get the job done. There's really not any honor in doing so, but I think TI broke the rules already by making the nSpire non-asm compatible. TI needs to go down on this creation. We really need to teach them a lesson. You'd think that they would figure out that we're gonna hack everything they create, sooner or later

11 Oct 2008 10:12:59 am by JoostinOnline
TylerMcL wrote: But yeah, I just say we use brute force to get the job done.[post="127795"]<{POST_SNAPBACK}>[/post] YEAH!!! (Joostin grabs hammer and smashes TI-Nspire) It didn't work...

11 Oct 2008 10:22:10 am by darkstone knight
maybe, if we can find out the chip thats used in the nspire, we can find out the hex codes for instructions and then hack it by seaching to repeating codes (e.g, multipling by 8, bit shifting, JR/JP/call command)

11 Oct 2008 01:39:05 pm by TylerMcL
We already know that it's a ARM926EJ-S processor with ARM5 instruction set. Tests indicate that it runs at 90 MHZ. The processor is the same for both the CAS and non-CAS. What I'm working on right now, is obtaining a copy of the instruction set... I'll try to post a link if/when I find it. Like posted before, our best bet is to get this and use the commands to find a sequence, or familiar use of hex codes. The complications come in when the text may be encrypted using a different algorithm than the instructions. I can't say anything for certain, due to the fact that I know close to nothing about hackin, in itself.

11 Oct 2008 01:56:53 pm by darkstone knight
is it even possible to upload progs to the calc??

11 Oct 2008 05:28:18 pm by c_plus_plus
Don't shoot me if this is a stupid idea, but is there a way to put a logic tester of sorts on the processor, and determine what instructions it is running? Second, has anyone attempted to dump the flash ROM chip yet?

11 Oct 2008 06:32:30 pm by brandonw
Have any of you read this thread? I've already stated there is a developing community working on this, and yes, there are efforts to dump both memory chips as well as many exploits through linking and corrupted document files. As I also said in this thread, a lot of the latest efforts remain private because I guarantee you that TI IS watching this, and this forum is the last place for serious discussions on it.

11 Oct 2008 10:07:07 pm by TylerMcL
0x5, yes, I've been reading (I'm the one who started the thread ) But yeah, for real people! Just take the extra minute and a half 0x5 And yeah, I guarantee that TI has people hired specifically to monitor these sites and to report any discoveries by us, to them It could even be one of us... !!! Who's the latest member on this form?? Darkstone Knight might be him!! 0x5 just kidding... or am I? But yeah, if anyone has any serious questions on the progress of hacking it: just email me, and I'll see what I can find, or talk to :P So should we just stop talking about hacking the TI Nspire for now? At least a hack is found??

12 Oct 2008 08:40:14 am by darkstone knight
uhm, an Texas instrumentas dude would be the last one to reach 1k postcount on dutch TI forums :D

12 Oct 2008 09:24:27 am by Galandros
TylerMcL wrote: 0x5, yes, I've been reading (I'm the one who started the thread ) But yeah, for real people! Just take the extra minute and a half 0x5 And yeah, I guarantee that TI has people hired specifically to monitor these sites and to report any discoveries by us, to them It could even be one of us... !!! Who's the latest member on this form?? Darkstone Knight might be him!! 0x5 just kidding... or am I? But yeah, if anyone has any serious questions on the progress of hacking it: just email me, and I'll see what I can find, or talk to :P So should we just stop talking about hacking the TI Nspire for now? At least a hack is found?? [post="127815"]<{POST_SNAPBACK}>[/post] So much talk and maybe TI guy is you. You made the post... :biggrin: Calm down. Let the team work and make their discoveries dark and unknown and strike TI when it is not expecting it! It's better that way. (and imagine the look of TI staff when they will know ^^ ) Some much talk about n-spire so now I am curious to put my hands on one. When I discovered ti-82 was hacked I laugh at TI. Imagine then nspire hacked. It will be full parody. Now about hacking stuff and the try of brute force the encryption. In z80 there are some routines that could be a situation like that. Maybe a kind of ld a,(hl) \ ld h,(h) \ ld l,a Or calls and jumps that are very used. Especially jps to just some bytes after, especially equivalent of relative jumps >_> I do not make a minor ideia of ARM5 instructions but processors have similar instrunctions I think, only more and extended options. I only know z80 and with few experience. Nintendo DS has a ARM processor at 67 Mhz that make quite cool 3D games. Oh and it is from the same family of processors.

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