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TI-Nspire OS 3.0.2 Released
Posted by Ryan on 8 June 2011, 23:43 GMT

Here is some past news that you may have missed.

As you may have heard, TI recently released OS 3.0.2 for the TI-Nspire and TI-Nspire CAS platforms. You have no doubt read somewhere that this follows in the wake of reported issues of OS 3.0.1 occasionally bricking some individual's calculators.

As a word of warning, it has been reported that TNOC, software designed to remove the Boot2 image from upgrade files (thus allowing for OS downgrades), is not a feasible fix with OS 3.0.2. What this means is that at this time, upgrading to OS 3.0.2 means that you will not be able to revert to older OS versions.

It was originally reported that TI had blocked the discovered ability to execute Lua scripts in OS 3.0.2. However, recent developments suggest that Lua will remain a viable programming route in the future on the TI-Nspire platforms.

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Re: TI-Nspire OS 3.0.2 Released
Lionel Debroux Account Info
(Web Page)

It remains, however, useful to strip with TNOC the boot2 upgrade contained in the 3.0.2 TNO/TNC (perhaps this should be mentioned in the news article ?).
Indeed, OS 3.0.2 works just fine with boot2 1.4.1571, and boot2 3.x has been strengthened against attacks.

TI has indeed made OS 3.0.2 unable to run third-party Lua programs created by third-party generators, suitable for OS 3.0.1, by requiring 0D compression+encryption for all parts of the file, and/or by validating the ZIP archive more strongly.
At the time of this writing, in order to become usable by OS 3.0.2, files created by third-party generators need to be:
* either opened and re-saved in OS 3.0.1 (either on the calculator or in TINCS);
* or re-generated using the official generator + TINCS.

Reply to this comment    9 June 2011, 07:03 GMT


Re: Re: TI-Nspire OS 3.0.2 Released
elfprince13 Account Info
(Web Page)

Thanks for the Tech-Specs Lionel.

Reply to this comment    9 June 2011, 11:47 GMT

Re: Re: Re: TI-Nspire OS 3.0.2 Released
JBB Account Info

Lets see, as I understand it with 3.0.1 your calc may brick and with 3.0.2 there is no turning back to previous os's where ndless can be used. But with the Prizm there are none of these problems. Got it.

Reply to this comment    11 June 2011, 11:44 GMT

Re: Re: Re: Re: TI-Nspire OS 3.0.2 Released
Lionel Debroux Account Info
(Web Page)

With OS 3.0.1, there's no bricking if you don't update the boot2 (i.e. if you strip it with TNOC). But the calculator will, however, yield wrong math results...

Reply to this comment    11 June 2011, 12:28 GMT


Re: Re: Re: Re: Re: TI-Nspire OS 3.0.2 Released
JBB Account Info

But the calc will yield wrong math results - wonderful, just wonderful...what will ti think of next.

Reply to this comment    13 June 2011, 17:15 GMT


Re: Re: Re: Re: TI-Nspire OS 3.0.2 Released
sasan sasan  Account Info

TI-Nspire cas OS

Reply to this comment    1 February 2013, 17:34 GMT


Re: Re: Re: TI-Nspire OS 3.0.2 Released
sasan sasan  Account Info

os for TI-Nspire CAS

Reply to this comment    1 February 2013, 17:35 GMT

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