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Author Topic: How to crash a TI-Nspire CX in 5 seconds  (Read 12333 times)

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Offline DJ Omnimaga

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How to crash a TI-Nspire CX in 5 seconds
« on: May 28, 2011, 11:33:56 pm »
Although we do not know if it is on the latest TI-Nspire CX OS (3.0.2), it seems that the CX wasn't 100% bug-free upon release.

If you add two empty strings together, the calculator crashes then reboots:



In addition to that, Yunhua98 recently reported about a bug with the LCD updating, causing some portions to not be updated properly when switching screens:



Again, we do not know if those were fixed in OS 3.0.2, but since people will probably stick to 3.0.1 until they are sure they can downgrade fine, those are potential glitches you might encounter when using your brand new calculator that TI recently started to release. Hopefully they get fixed in later versions, even if the bugs are rare or not commonly triggered.
« Last Edit: May 28, 2011, 11:35:14 pm by DJ_O »
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Offline calc84maniac

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #1 on: May 28, 2011, 11:38:46 pm »
By the way, iirc the second image is not an actual screenshot of the glitch, just an idea of what it looks like.
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Offline AGVolnutt

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #2 on: May 28, 2011, 11:39:16 pm »
I think this is why TI gave some devices out so developers can test them.

I still wonder, could it be possible that the CX was rewritted from scratch? Regular nSpire will display a syntax error, so it's possible that TI could've missed this little detail when editing some code for the CX.
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Offline DJ Omnimaga

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #3 on: May 28, 2011, 11:40:18 pm »
I'm not sure. Maybe they accidentally introduced that bug. I know Casio did it with the Locate command on the Prizm, but fortunately it did not cause any crashes.
Quote from: calc84maniac on May 28, 2011, 11:38:46 pm
By the way, iirc the second image is not an actual screenshot of the glitch, just an idea of what it looks like.
Yeah I know. He sadly did not have a camera when the glitch happened. It was a rare bug.
« Last Edit: May 28, 2011, 11:40:50 pm by DJ_O »
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Offline ruler501

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #4 on: May 28, 2011, 11:42:29 pm »
This is TI for you ahaving their customers be their bug testers. I'm halfway between I hate TI and TI might be good. They have things liek this happen but they also release tools for Lua dev
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Offline TIfanx1999

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #5 on: May 29, 2011, 12:25:10 am »
I'm surprised it actually causes a reboot, has anyone reported the bug?
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Offline Lionel Debroux

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #6 on: May 29, 2011, 01:01:46 am »
I already heard of adding two empty strings together crashing older versions of the OS. So this means that they haven't fixed that bug...
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Offline JosJuice

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #7 on: May 29, 2011, 02:00:04 am »
Quote from: DJ_O on May 28, 2011, 11:33:56 pm
Again, we do not know if those were fixed in OS 3.0.2, but since people will probably stick to 3.0.1 until they are sure they can downgrade fine, those are potential glitches you might encounter when using your brand new calculator that TI recently started to release.
Downgrading is impossible on the CX anyway... The older OSes aren't supported and since 3.0.1 or higher is pre-installed, we can't TNOC it. (Unless you meant downgrading to 3.0.1 from 3.0.2, but I don't see the point in doing that unless there's some new 3.0.1 exploit that we'll find)
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Offline DJ Omnimaga

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #8 on: May 29, 2011, 02:50:36 am »
Well I meant for those who decide to stick with 3.0.1. (assuming they get their calc with it). I am sure older OSes wouldn't even work, unless maybe modified (which requires the 2048 bit RSA key).
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Offline Munchor

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #9 on: May 29, 2011, 06:21:21 am »
Hum, this most certainly is bad. So it's an older bug TI didn't fix? :/

Also, the video is private, can I be invited to see it DJ?
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Offline Adriweb

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #10 on: May 29, 2011, 06:40:15 am »
Yeah, I changed the privacy settings for now, but the bug was here for a while, you can test it yourself by addind two epty strings (the " "+" " thing, with the dotted square inside the ")
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Offline DJ Omnimaga

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #11 on: May 29, 2011, 01:03:37 pm »
Hmm why did you made the video private? ??? Couldn't you at least make it so people who know the URL can still watch it? ??? Now it no longer plays in the news above...
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Offline Adriweb

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #12 on: May 29, 2011, 01:37:49 pm »
yes, sorry
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Offline DJ Omnimaga

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #13 on: May 29, 2011, 01:39:57 pm »
Cool thanks. I'm still curious why it was made private, though. Did TI threaten you or something?
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Offline ruler501

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Re: How to crash a TI-Nspire CX in 5 seconds
« Reply #14 on: May 29, 2011, 01:42:43 pm »
why is it private. I wouldn't think TI could tell you to make that private
« Last Edit: May 29, 2011, 01:42:50 pm by ruler501 »
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