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Quick question regarding TI-nspire CX
donbirdy:
Greetings all,
Apologies if this is a noobish question however I've just recently purchased a TI-nspire CX and desperately need the Computer Algebra System Functionality.
I have purchased the calculator second hand (The last 7 digits of the serial number at the back of the calculator are: P-0511b.
The current software version on the device, (I presume stock) is Version 3.9.0.463 as defined under "Handheld Status".
After doing a little bit of research, it appears as if there is no hardware limitation for use of CAS features implemented in the TI-nspire CAS.
It is my understanding that the boot2 can be modified in order to unleash the CAS features on the CX device.
Does anyone know how I can go about doing this?
Any help would be greatly appreciated.
Many Thanks!
DJ Omnimaga:
Since it's a B (2011) hardware revision, it isn't as restricted as hardware J and higher and it probably came with OS 3.0.1, so the previous owner probably upgraded it before selling it. I believe there is a way to downgrade from OS 3.9 on older models, but I think the minimum is OS 3.6, according to this post https://tiplanet.org/forum/viewtopic.php?f=15&t=15163&p=169442&hilit=downgrade+os+3.9#p169442 and I forgot how it is possible to downgrade from OS 3.9 to that OS, let alone a CAS OS.
Otherwise the other alternative is to use KhiCAS.
donbirdy:
Thanks for that DJ Omnimaga,
I am struggling to find some instructions that are in English for running KhiCAS (I have Googled extensively).
If anyone could point me in the right direction it would be greatly appreciated :D.
Many Thanks again,
DJ Omnimaga:
This might have english instructions http://tiplanet.org/forum/archives_voir.php?id=79135&lang=en , else there might be http://tiplanet.org/forum/viewtopic.php?p=166225&lang=en
donbirdy:
Thanks for all your help.
I have soldered up a TTL connection, does anyone know where I can find the 3.6 ROM I have looked everywhere!
I will probably need to re-flash the boot2 loader in order to get the 3.6 OS to work? Is this lurking around anywhere.
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