Author Topic: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!  (Read 21943 times)

0 Members and 1 Guest are viewing this topic.

Offline critor

  • Editor
  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2079
  • Rating: +439/-13
    • View Profile
    • TI-Planet
nLaunch is an alternative OS launcher alternative TI-Nspire, which is injected in the boot2 3.1.0.16.

It bypasses all protections and install:
  • development OS
  • old OS with a version number less than the minimum installable OS version
  • modified OS
  • third party OS like Linux
  • CAS OS on the non-CAS TI-Nspire and non-CAS OS on the TI-Nspire CAS
This last point has recently been a problem for Portuguese exams prohibiting the use of a CAS engine.

As a consequence, we were not surprised to discover in a previous news a new 3.2.4.1237 OS on the latest manufactured TI-Nspire CX calculators.
Indeed this OS:
  • updates the boot2 to a 3.2.4.7 version which fixes the flaw used by Nlaunch
  • increases the minimum installabl OS version to 3.2.4.1200, thus preventing any return to an Ndlessable OS, which would have allowed you to reflash the Boot2
In an official document, Texas Instruments has communicated with Portuguese teachers:

This paper discusses several points:
  • it explains what Nlaunch is
  • it explains how to check if a TI-Nspire uses the CAS engine or not thanks to the model name displayed on the 'about' screen accessible via
  • it explains how to uninstall Nlaunch, by sending two successive TI-Nspire OS
  • it says that since December 2012, OS 3.2.4 has fixed the problem - which is great as Nlaunch was on released only on January 1st, 2013! Did TI anticipate the problem? :O
  • it announces OS 3.6 but not for this summer summer anymore: for October 2013
  • it mentions a new feature of OS 3.6 which will help to detect cheaters more easily on exams where the use of the CAS engine is prohibited, as this information is now available directly on the home screen! ;D
This goes far beyond the simple detection Nlaunch because there it will also detect adepts of the "case switching" who put the TI-Nspire CAS hardware in the TI-Nspire non-CAS case! ;D




Source:
http://tiplanet.org/forum/viewtopic.php?t=12484&lang=en

Link:
http://www.ti-education-news.com/media_db/upload/1371222887_1093.pdf
« Last Edit: June 20, 2013, 05:30:02 pm by critor »
TI-Planet co-admin.

Offline Streetwalrus

  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 3821
  • Rating: +80/-8
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #1 on: June 20, 2013, 05:42:37 pm »
Meh. I turned my CX into a CAS one for price reasons. In France they don't care. :P (mostly because they are lazy but also because banning CAS is stupid IMHO)
« Last Edit: June 20, 2013, 05:43:18 pm by Streetwalker »

Offline Sorunome

  • Fox Fox Fox Fox Fox Fox Fox!
  • Support Staff
  • LV13 Extreme Addict (Next: 9001)
  • *************
  • Posts: 7920
  • Rating: +374/-13
  • Derpy Hooves
    • View Profile
    • My website! (You might lose the game)
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #2 on: June 20, 2013, 05:43:46 pm »
lol, a cas indication on the screen >.<
But they can't prevent that stuff on the old nspires that are already sold :D

THE GAME
Also, check out my website
If OmnomIRC is screwed up, blame me!
Click here to give me an internet!

Offline Streetwalrus

  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 3821
  • Rating: +80/-8
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #3 on: June 20, 2013, 05:44:30 pm »
Eyup. Also people willing to do it will buy the TTL adapter and downgrade anyway. Unless TI upgrades the boot1.
« Last Edit: June 20, 2013, 05:47:09 pm by Streetwalker »

Offline gtugablue

  • LV1 Newcomer (Next: 20)
  • *
  • Posts: 12
  • Rating: +0/-0
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #4 on: June 20, 2013, 06:23:57 pm »
OSLauncher.tns ftw

Offline Streetwalrus

  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 3821
  • Rating: +80/-8
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #5 on: June 20, 2013, 06:25:41 pm »
Seriously ? It sucks. <_< Also you need 3.1 for this one.

Offline gtugablue

  • LV1 Newcomer (Next: 20)
  • *
  • Posts: 12
  • Rating: +0/-0
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #6 on: June 20, 2013, 06:31:47 pm »
It works perfectly in my Nspire classic and i don't need 3.2. Even if I did need 3.2 I could use oslauncher as well to start one OS at a time (3.2 and CAS).

Offline Streetwalrus

  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 3821
  • Rating: +80/-8
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #7 on: June 20, 2013, 06:33:05 pm »
In some exams you have to have the latest version.

Offline gtugablue

  • LV1 Newcomer (Next: 20)
  • *
  • Posts: 12
  • Rating: +0/-0
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #8 on: June 20, 2013, 06:35:10 pm »
Not in Portugal unfortunately

Offline Streetwalrus

  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 3821
  • Rating: +80/-8
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #9 on: June 20, 2013, 07:23:21 pm »
I don't care though because in France it's a "do whatever the f*ck you wanna do" type deal  with calcs so yeah. :P
« Last Edit: June 20, 2013, 07:23:40 pm by Streetwalker »

Offline gtugablue

  • LV1 Newcomer (Next: 20)
  • *
  • Posts: 12
  • Rating: +0/-0
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #10 on: June 20, 2013, 07:32:41 pm »
Lol install linux, attach a wifi dongle and ask someone to do the exam for you :)

Offline AlexisVieira

  • LV4 Regular (Next: 200)
  • ****
  • Posts: 100
  • Rating: +1/-1
    • View Profile
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #11 on: June 20, 2013, 08:00:17 pm »
lol, a cas indication on the screen >.<
But they can't prevent that stuff on the old nspires that are already sold :D
yes we can :)

Lol install linux, attach a wifi dongle and ask someone to do the exam for you :)
whooo :o i'll try that idea xD
« Last Edit: June 20, 2013, 08:02:54 pm by AlexisVieira »
I'm Portuguese, sorry bad English

Offline DJ Omnimaga

  • Clacualters are teh gr33t
  • CoT Emeritus
  • LV15 Omnimagician (Next: --)
  • *
  • Posts: 55942
  • Rating: +3154/-232
  • CodeWalrus founder & retired Omnimaga founder
    • View Profile
    • Dream of Omnimaga Music
Re: Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #12 on: June 20, 2013, 09:11:51 pm »
IMHO fighting cheaters and making sure they can be caught easier is a good move, but it sucks that TI constantly punishes everyone who don't want to cheat and instead want to succeed in school. Those students spent $150 on a tool they use legitimately to help them learn and they should be able to do whatever legal thing they want with it, now that they own it. Once again, everyone's rights are removed for the action of a few lazy students (who cheat in order to pass their exams) and lazy school administrations (who don't want to bother checking people's calc content prior starting the exam).
Now active at https://discord.gg/cuZcfcF (CodeWalrus server)

Offline Stefan Bauwens

  • Creator of Myst 89 - סטיבן
  • LV10 31337 u53r (Next: 2000)
  • **********
  • Posts: 1799
  • Rating: +162/-24
  • 68k programmer
    • View Profile
    • Portfolio
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #13 on: June 21, 2013, 03:27:32 am »
Why did Critor get a downrating there? O.O

Just like DJ_O said, I think it somehow is a good move. Making a CX a CX CAS just doesn't seem quite right to me without paying for it anyway...

But now I think of it, the only reason you're (most likely) going to take a CAS-made-CX with you to exams where it isn't allowed is to cheat, so I would say: Own fault. :P




Very proud Ticalc.org POTY winner (2011 68k) with Myst 89!
Very proud TI-Planet.org DBZ winner(2013)

Interview with me

Offline DJ Omnimaga

  • Clacualters are teh gr33t
  • CoT Emeritus
  • LV15 Omnimagician (Next: --)
  • *
  • Posts: 55942
  • Rating: +3154/-232
  • CodeWalrus founder & retired Omnimaga founder
    • View Profile
    • Dream of Omnimaga Music
Re: TI-Nspire OS 3.6 1st official capture: let's fight cheaters!
« Reply #14 on: June 21, 2013, 04:26:28 am »
Not sure, but probably someone who absolutely despise TI who was upset that Critor's post didn't bash TI really hard like in the OS 2.1 days and he decided to rate his post based on his opinion of TI rather than content. I rated it back up since I don't see why it should be downrated.

As for the move, I just hope that this doesn't permanently prevent any downgrade exploits and that the days of Linucx aren't counted.
« Last Edit: June 21, 2013, 04:27:50 am by DJ Omnimaga »
Now active at https://discord.gg/cuZcfcF (CodeWalrus server)