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Author Topic: TI Nspire CAS+ ---- Is it worth it?  (Read 38219 times)

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Offline willrandship

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #45 on: April 03, 2011, 07:18:40 pm »
Well, that's how you hook it up to a NAND reader. :P unless you use a software exploit, it's pretty much required.
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Offline mikehill2003

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #46 on: April 03, 2011, 09:09:32 pm »
Quote from: willrandship on April 03, 2011, 07:18:40 pm
Well, that's how you hook it up to a NAND reader. :P unless you use a software exploit, it's pretty much required.
:P
Not really. You can try to dump it without removing the chip from the board (works most of the time, and is much easier to not destroy the NAND). Do you have a specific NAND reader in mind, or do you mean a modified xD card adapter?

And critor, I'm not a professional, but if you need SMT soldering tips I could make some infographics for you tomorrow that might help. I may not be good enough with software right now to recreate RunOS, but I am pretty good with hardware.
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Offline critor

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #47 on: June 25, 2011, 05:39:00 am »
I've ordered the Fujifilm DPC R1 xD card reader mentionned previously.
http://ourl.ca/9674/188743

I'm going to try dumping the CAS+ NAND ROM like that, as it seems it's the only way left for now.
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Offline critor

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #48 on: June 25, 2011, 06:38:37 am »
Here is the CAS+ NAND ROM pinout.
Unmarked pins are not connected to anything.



Here are the matching pins on an xD card:



Before I spend hours bricking some CAS+, can you confirm me these are ok?
Thanks.
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Offline critor

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #49 on: June 30, 2011, 12:17:35 pm »
Received the xD card reader.
Opened a CAS+ with OS 1.0.554...
Looked at the NAND ROM pins......

Err......... How many zero in my success probability?... :(
« Last Edit: June 30, 2011, 12:17:47 pm by critor »
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Offline bsl

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #50 on: June 30, 2011, 01:08:38 pm »
If the small solder contacts look too small to you.
Practice soldering on an old radio or something, with the soldering suggestion I gave on this thread.
When you get good at it - then do it on the CAS+
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Offline critor

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #51 on: June 30, 2011, 01:12:37 pm »
I'm currently trying to trace out some alternative points to solder to, instead of directly to the NAND chip.

But this won't be possible for all pins.
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Offline critor

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #52 on: July 02, 2011, 06:08:40 pm »
A little photo for you, after gathering all the material, and before the disaster...

« Last Edit: July 02, 2011, 06:09:36 pm by critor »
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Offline Darl181

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #53 on: July 02, 2011, 06:41:09 pm »
Good luck with this...hope it turns out ok ;D
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Offline Jim Bauwens

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #54 on: July 25, 2011, 02:28:35 pm »
I'm curious to know if this has worked out :)
Maybe I'll do this myself, but I'm a bit afraid since I only have one nspire x)
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Offline critor

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #55 on: July 25, 2011, 03:20:21 pm »
Unfortunately, I'm missing time because of the TI-Bank problems...

Just try it. If you fail, I'll ship you a replacement CAS+ with OS 1.0.554. :)
If you succeed, I'll ship you a CAS+ with the older and rarer 1.0.529 OS. :)
« Last Edit: July 25, 2011, 03:20:59 pm by critor »
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Offline Jim Bauwens

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #56 on: July 26, 2011, 03:33:49 pm »
But they don't support Lua :p

Maybe i'll do it, because I have every thing I need :)
Just need to do some more research!
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Offline mikehill2003

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #57 on: July 26, 2011, 08:11:37 pm »
Nice job guys! I got an nspire CAS+ several months ago, but haven't had time to do this yet (I've been so busy I haven't even been on Omnimaga in ages).

Good luck!
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Offline Jim Bauwens

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #58 on: July 27, 2011, 05:55:38 am »
Meh, sadly enough I can't do this with my nspire touchpad because its has a nand chip were I can't solder on :(

http://datamath.org/Graphing/JPEG_NSpire_TP.htm#memory
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Offline critor

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Re: TI Nspire CAS+ ---- Is it worth it?
« Reply #59 on: July 27, 2011, 01:43:23 pm »
But you don't need to do that with a TouchPad.

It would be usefull to do that:
- with a CAS+ (in order to be able to reinstall the OS as the matching .tnc files have never been published)
- with a CX (as we do need the Boot1 because the Boot2 is not encoded binary code anymore...)
« Last Edit: July 27, 2011, 01:44:12 pm by critor »
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