Author Topic: 84+/SE Boot Pages Modified  (Read 40116 times)

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Offline XiiDraco

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Re: 84+/SE Boot Pages Modified
« Reply #105 on: September 30, 2013, 11:51:56 pm »
Why do they try that hard? Would being able to program and do these things with them actually ATTRACT customers?

Offline Streetwalrus

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Re: 84+/SE Boot Pages Modified
« Reply #106 on: October 01, 2013, 01:02:55 am »
* Streetwalker pokes 65536 bits RSA key :P

Offline TIfanx1999

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Re: 84+/SE Boot Pages Modified
« Reply #107 on: October 01, 2013, 06:14:01 am »
This is a bit odd. Not really a big deal to us though.

Offline Sorunome

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Re: 84+/SE Boot Pages Modified
« Reply #108 on: October 01, 2013, 06:32:37 am »
* Streetwalker pokes 65536 bits RSA key :P
let's get decoding >:D
« Last Edit: October 01, 2013, 06:32:47 am by Sorunome »

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Offline thepenguin77

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Re: 84+/SE Boot Pages Modified
« Reply #109 on: October 01, 2013, 09:32:24 am »
Well, I hope that Unsigned still works at least. :/

Good luck stopping unsigned lol. I made that program possibly the most annoying program for TI to debug. Not only is the entire program encrypted, but it has like 8 different hardware checks that it performs to make sure it's not running on an emulator. My favorite part is that a few of the checks crash it, a few of the checks freeze, and finally, the last few checks make it look like it worked when in reality nothing happened.

Basically, TI is going to have to write some code in order to figure out how that program works.
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Offline Sorunome

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Re: 84+/SE Boot Pages Modified
« Reply #110 on: October 01, 2013, 11:49:49 am »
That sounds pretty fun, as if you should film them trying to debug unsigned :P

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Offline Streetwalrus

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Re: 84+/SE Boot Pages Modified
« Reply #111 on: October 01, 2013, 12:15:46 pm »
LOL ;D
Though if they lock the certificate we're screwed. :/
Also I have a rev G clac with boot code 1.02 but I use unsigned anyway for the name on about screen. :P Also set my cert rev to 42. :P
« Last Edit: October 01, 2013, 12:18:07 pm by Streetwalker »

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Re: 84+/SE Boot Pages Modified
« Reply #112 on: October 01, 2013, 09:45:58 pm »
@thepenguin77: And that my friend, is why you are so awesome. :D

Offline DJ Omnimaga

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Re: 84+/SE Boot Pages Modified
« Reply #113 on: October 01, 2013, 11:08:44 pm »
Well, I hope that Unsigned still works at least. :/

Good luck stopping unsigned lol. I made that program possibly the most annoying program for TI to debug. Not only is the entire program encrypted, but it has like 8 different hardware checks that it performs to make sure it's not running on an emulator. My favorite part is that a few of the checks crash it, a few of the checks freeze, and finally, the last few checks make it look like it worked when in reality nothing happened.

Basically, TI is going to have to write some code in order to figure out how that program works.
If they ever manage to block it, I hope OS validation (when sending an OS to the calc) won't take an extra 10 minutes O.O

Offline JosJuice

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Re: 84+/SE Boot Pages Modified
« Reply #114 on: October 02, 2013, 05:59:19 am »
Anybody who bought a TI-84+ those last weeks/months? Which hardware revision did it come with?
People in my class recently bought calcs, so I checked a few of them.
Calc 1: P-0113P, 1.03, TI-84+
Calc 2: This one seems weird to me. K_0411S, 1.03, TI-84+ (EDIT: I mistyped this as an SE. It's actually a regular one.)
Calc 3: This is an TI-84+SE that's so old that it doesn't have a letter at the end of its serial.
« Last Edit: October 02, 2013, 04:17:24 pm by JosJuice »

Offline thepenguin77

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Re: 84+/SE Boot Pages Modified
« Reply #115 on: October 02, 2013, 09:53:17 am »
Calc 2: This one seems weird to me. K_0411S, 1.03, TI-84+SE

Back around the time that the missing ram pages were discovered, we figured out not to trust anything written on the back of a K calculator. If I remember correctly, we thought they might be refurbished or something.
« Last Edit: October 02, 2013, 09:53:49 am by thepenguin77 »
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Offline Lionel Debroux

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Re: 84+/SE Boot Pages Modified
« Reply #116 on: October 02, 2013, 12:25:09 pm »
Thanks, JosJuice :)

Any other contributors to the quest ?
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Offline DJ Omnimaga

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Re: 84+/SE Boot Pages Modified
« Reply #117 on: October 02, 2013, 12:34:50 pm »
Calc 2: This one seems weird to me. K_0411S, 1.03, TI-84+SE

Back around the time that the missing ram pages were discovered, we figured out not to trust anything written on the back of a K calculator. If I remember correctly, we thought they might be refurbished or something.
Is there still a list of various calc models with tests ran on it showing if tools work or if they have the extra RAM pages? I remember it was floating around somewhere when TI-Boy SE started, but I don't remember if it was updated.

Offline FloppusMaximus

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Re: 84+/SE Boot Pages Modified
« Reply #118 on: October 02, 2013, 08:21:44 pm »
Good luck stopping unsigned lol. I made that program possibly the most annoying program for TI to debug. Not only is the entire program encrypted, but it has like 8 different hardware checks that it performs to make sure it's not running on an emulator. My favorite part is that a few of the checks crash it, a few of the checks freeze, and finally, the last few checks make it look like it worked when in reality nothing happened.
As an emulator author I know I ought to be offended at the idea of emulators being imperfect; as a realist I know that of course they inevitably are; and as a fan of third-party OSes I'm just amused.  Well done, though I may need to have a go at cracking your program myself. ;)

It seems that the new TI-83 Plus.fr USB in France (which use the TI-84+SE hardware) have their Boot Code write protected: EpicFail and Flashy don't work anymore.
This, to be honest, is probably a good thing.  Is the boot code the same as the older 1.03?

Offline DrDnar

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Re: 84+/SE Boot Pages Modified
« Reply #119 on: October 02, 2013, 09:55:16 pm »
It seems that the new TI-83 Plus.fr USB in France (which use the TI-84+SE hardware) have their Boot Code write protected: EpicFail and Flashy don't work anymore.

I can write a program to test this directly.

It's hardly surprising, considering they did the same thing on the TI-84+CSE.
« Last Edit: October 03, 2013, 12:33:36 am by DrDnar »
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