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Messages - critor
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226
« on: August 22, 2013, 09:26:35 am »
Nice find, fortytwo.  Did you ask for the OS version or for the serial number? We could deduce from that if it's just the keypad which is interesting or the full thing. 
227
« on: August 22, 2013, 09:22:20 am »
The TI-Nspire Color does already have a CX Boot2, as it is a TI-Nspire CX prototype.
But its Boot1 uses the developper keys instead of the production ones.
So the Boot1 will reject all production TI-Nspire CX Boot2 and OSes, meaning probably everything you've got, and this has nothing to do with the manuf.
228
« on: August 21, 2013, 01:13:09 pm »
How exactly did you fix it? I have the same problem and no matter what I do the calculator wont stop showing the "unable to install a version older than the current" message but I'm trying to install 3.2.3.1233
Then you have 3.2.4.
This OS has a boot2 upgrade that has an anti-downgrade minimal version set to 3.2.4.
http://ti-pla.net/a17810
I am unable to use this because my Nspire is only CX not CX CAS so it says unsupported OS/file type
Then here is the 3.2.4 for the CX non-CAS: http://tiplanet.org/forum/archives_voir.php?id=19244
229
« on: August 21, 2013, 10:36:44 am »
Thanks.
So a simple dictionnary-based attack should have been enough.
230
« on: August 21, 2013, 09:52:45 am »
On TI-Nspire ClickPad DVT1.2 and DVT2.0 prototype units and hardware revision A production units, the Boot1 was an external documented ROM chip, a SST 39WF400A. The flashing tool is available here with source code, but it's essentially assembly code implementing the read, erase and write functions: http://tiplanet.org/forum/archives_voir.php?id=10069 (Ndless 1.7/2.0/3.1) http://tiplanet.org/forum/archives_voir.php?id=4184 (Ndless 1.1/1.2 for the 1st prototype reflashing) On the TI-Nspire Color, the external Boot1 NOR chip is by MXIO. I have problems reading its reference on the photo, so I'm going to open my faulty TI-Nspire Color again. I'll either edit this post or reply in this topic.
231
« on: August 21, 2013, 08:43:29 am »
If you (or someone else) buy one of the TI-Nspire Color, be aware that you won't be able to update it with production OSes. It includes development builds of the Boot1 and Boot2 which check the OS with the development RSA keys. So all production OSes released on TI website will be rejected. Unlike production TI-Nspire CX, the TI-Nspire Color Boot1 seems to be included in an external NOR chip present on the back of the screen board (and missing on production units, where the Boot1 was moved and secured inside a different ASIC chip), which means it might be possible to reflash it with a production or patched Boot1 image. This could prove be very interesting and useful  We already did and document that with TI-Nspire ClickPad DVT1.2 and DVT2.0 prototypes. But the chip here is completely different and so does need a specific tool we haven't developped yet.
232
« on: August 21, 2013, 07:40:20 am »
In a previous news, an alpha version of the HP-Prime software leaked on the Internet from China. Since, Hewlett Packard has authorized its partners to publicly host a newer version of this software. The message in question must have been misunderstood by some, as Klaas Kuperus has posted on HP-Museum not the HP-Prime software, but the login and password of the private FTP folder to recover it: The problem being that on the 8th of August, this folder did contain other files which are still confidential: - A 'firmware.zip' archive
- the HP-Prime version of the "HP-Conectivity Kit" linking software
- the calculator guidebooks in 7 languages (french, english, german, spanish...)
The 'firmware.zip' archive did contain: - the SDK0.26 Operating System
- the V11 Boot Code
- an USB tool to install the above versions (having an interface letting you read/write images from/to any memory address - which is clearly not the final interface)
So some of those files may be very interesting for hackers/tinkerers and may eventually reappear on the Internet if the HP-Museum topic readers did get them in time. Indeed, the day after the leak, HP took some actions with that folder: - removal of the HP-Prime guidebooks which only reappeared on the 15th of auguts
- removal of the "HP-Connectivity Kit"
- overwrite of the 'firmware.zip' file with a new version including the new Operating System SDK0.30 and the new Boot Code V13, but whose extraction is this time protected by a password
Maybe they had set up some scripts which had been searching for the password for several hours/days, but the cnCalc.org website has finally published this morning a decrypted version of the above file. A great starting point to discover more about the HP-Prime. ;) Beware, the usbtool tool which allows you to write or read any image to any memory address of the calculator seems dangerous. The operating system consists indeed of several ROM images, each one having to be programmed at a very specific memory address:- APPSDISK.DAT
- armfir.elf
- BESTAARM.ROM
- BXCBOOT0.BIN
- MASTER.DAT
So HP-Prime calculators might be bricked permanently in case of misuse of that tool.Crossposted from:http://tiplanet.org/forum/viewtopic.php?t=12867&lang=enhttp://tiplanet.org/forum/viewtopic.php?t=12870&lang=enDownload:ftp://primesw:[email protected]Sources:http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/forum.cgi?read=247985#247985http://www.cncalc.org/thread-9276-1-1.html
233
« on: August 21, 2013, 06:44:42 am »
My unit was already updated to the latest firmware at that time.
234
« on: August 21, 2013, 04:13:07 am »
The firmware zip file which was available at the time of the leak was not password protected, but it was a different version: SDK0.26 + Boot Code V11.
Edit: I've just removed the direct link. Tell me if you change your mind. I know it's a difficult decision, especially for this topic.
235
« on: August 21, 2013, 04:10:03 am »
It's the OS currently available in a zip-password-protected archive file on the HP FTP.
So it was not intended to be publicly available.
Either cnCalc.org did have the pass and rebuilt a non-protected archive after extracting the files, either they've been running a brute force attack on the file since yesterday.
236
« on: August 21, 2013, 04:05:30 am »
So, do I remove the direct ROM link and just mention the website, for example?
237
« on: August 21, 2013, 04:03:40 am »
mocely1 -> in your case, you need a little piece of hardware in order to being able to downgrade to 3.2.3 or older.
238
« on: August 21, 2013, 04:01:20 am »
Yes, we allready saw this on a TI-Nspire Color prototype.
If you manage to boot it, could you tell us the OS/Boot1/Boot2 versions?
Thanks.
This calculator doesn't belong to me and I don't think it could boot into OS successfully.
It depends if the error happens on every boot or not. On my TI-Nspire Color which has a faulty hardware (I suppose it's not the case with you), the BSOD was systematic when turning the calculator back on after it turned off by itself.
239
« on: August 21, 2013, 03:58:16 am »
As far as I know, this is not related to the will to develop an official SDK or not.
All development firmwares have a SDK prefix in the version string.
By the way, I was wondering if my link above was against the Omnimaga ROM images rules.
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