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General Open Topic
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critor
Member
Joined: 04 Feb 2009
Posts: 132
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 Posted: 14 Jul 2010 08:44:35 pm Post subject: |
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TI has released OS 2.1 for the TI-Nspire and the TI-Nspire CAS.
The OS has allmost no new feature for the user. And strangely, TI has made great annoucements on their site...
I thought there were something suspectfull...
And unfortunately there is! >:(
Once you have installed OS 2.1 on your TI-Nspire ClickPad or TouchPad, you can't downgrade any more to OS 1.6 or older. So you can't use Ndless any more.
I've made many tests this evening, and I found no way to bypass that protection.
Strangely, the included boot2 is the same (1.4.1571). May be the protection has allready been there for a long time, and has just been activated by OS 2.1. Installing a 1.7/2.0 OS doesn't disable the protection. Even the maintenance menu, with "remove OS" or even "complete reformat" doesn't help.
For more information, just Google-tranlate (french):
* my news on TI-Bank -> http://ti.bank.free.fr/index.php?mod=news&ac=commentaires&id=837
* my tests on the TI-Bank forum -> http://tibank.forumactif.com/actualites-f25/os-21-sorti-t5803.htm |
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calcdude84se
Member
Joined: 09 Aug 2009
Posts: 207
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| Posted: 15 Jul 2010 11:25:40 am Post subject: |
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Oh, Texas Instruments...
This is an even better reason to have Ndless 2.0 be for OS 1.7.
Why did they have to do this... |
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DrDnar
Member
Joined: 28 Aug 2009
Posts: 116
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| Posted: 16 Jul 2010 11:01:56 pm Post subject: |
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| Why should TI have their own bug-fixing department when we'll do it for free? |
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Lionel Debroux
Member
Joined: 01 Aug 2009
Posts: 170
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| Posted: 17 Jul 2010 12:59:41 am Post subject: |
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We can do free bug-fixing & unlocking on the TI-Z80 and TI-68k series, where we have factored all 15 most interesting RSA keys.
However - assuming we wished to do so for a manufacturer that consistently spits on the whole community's faces with their closed Nspire platform - we cannot do that as easily for Nspire, which has 1024-bit RSA keys, i.e. way beyond the state of the art of integer factoring. |
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