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Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 02:50
by SomeoneSpecial99
Hello,

I was wondering if anyone knew how to downgrade the OS on a Ti-Nspire CX CAS, It was running v2.something when i got it and i tried to upgrade it to v3.1 and fell for a lie made by the Ti-Nspire website :#fou#: ... It was actually v3.5... I read somewhere that if the last letter of the serial code is lower than I that it is down gradable... The last 5 digits of my Serial Number are "0911D"

Any help in any way is appreciated. :D

Thanks
~Special

PS. I know about the new version of NDless but it seems to crash every 5 minutes when I have it installed :'(

Re: Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 08:09
by critor
Even recent hardware revisions can be downgraded, but not with any version. That's the only difference.

Tutorial is here:
viewtopic.php?f=57&t=14102

Re: Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 08:13
by SomeoneSpecial99
critor wrote:Even recent hardware revisions can be downgraded, but not with any version. That's the only difference.

Tutorial is here:
viewtopic.php?f=57&t=14102

I'll follow this tutorial and will let you know if it works :) Thanks for linking it to me :)

Re: Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 08:16
by SomeoneSpecial99
critor wrote:Even recent hardware revisions can be downgraded, but not with any version. That's the only difference.

Tutorial is here:
viewtopic.php?f=57&t=14102


I have run into a problem:

The link to nsNandMgr (archives_voir.php?id=10080) is private to me

"Information
Cette archive est privée. This archive is private."

I tried to use a copy of nsNandMgr from ticalc.org but my calculator crashed the second i opened the file

Re: Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 08:32
by Levak
See : viewtopic.php?p=160117
Recent events have shown us that this tool can be responsible for bricking calculators if the user was not patient enough.

Re: Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 08:35
by SomeoneSpecial99
Levak wrote:See : viewtopic.php?p=160117
Recent events have shown us that this tool can be responsible for bricking calculators if the user was not patient enough.


:'(

Re: Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 10:55
by SomeoneSpecial99
Levak wrote:See : viewtopic.php?p=160117
Recent events have shown us that this tool can be responsible for bricking calculators if the user was not patient enough.


So is there no currently known way to set the minimum version installable to 0.0.0?

Re: Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 11:30
by Bisam
We are working on making previous method more reliable.
Other ways exist... but they are even harder and use external material.

Re: Ti-Nspire CX CAS

Unread postPosted: 04 Apr 2014, 11:39
by SomeoneSpecial99
Bisam wrote:We are working on making previous method more reliable.
Other ways exist... but they are even harder and use external material.

Ok