« previous next »
Pages: [1]   Go Down

Author Topic: Help With 3.9  (Read 4026 times)

0 Members and 1 Guest are viewing this topic.

Offline alex z

  • LV0 Newcomer (Next: 5)
  • Posts: 2
  • Rating: +0/-0
    • View Profile
Help With 3.9
« on: August 20, 2014, 08:19:28 pm »
Hi i'm kind of new to the whole ti-nspire (I used the 84+SE for a few years) and I am wondering is their a possible way to downgrade from OS 3.9 to 3.6?
I have done a fair amount of research but I cant find a way at this point so if their is a possible way to I am willing to try it.
3 cheers for a bad OS!
Logged

Offline DJ Omnimaga

  • Clacualters are teh gr33t
  • CoT Emeritus
  • LV15 Omnimagician (Next: --)
  • *
  • Posts: 55943
  • Rating: +3154/-232
  • CodeWalrus founder & retired Omnimaga founder
    • View Profile
    • Dream of Omnimaga Music
Re: Help With 3.9
« Reply #1 on: August 20, 2014, 08:38:02 pm »
Impossible unless you have a TI-Nspire Clickpad or Touchpad model. The color models (TI-Nspire CX and CX CAS) cannot be downgraded in any way for now, even with an RS232 adapter and even if the hardware revision is A through I.
Logged

Offline alex z

  • LV0 Newcomer (Next: 5)
  • Posts: 2
  • Rating: +0/-0
    • View Profile
Re: Help With 3.9
« Reply #2 on: August 20, 2014, 08:46:36 pm »
Well could is is possible to unpack the OS to see its files or no?

-----

In theory the OS should have a file that tells the software that opens it what version it is and ect... If there is such a file and it could be located in theory you could replace OS 3.6's definition file with OS 3.9's.

-----

http://hackspire.unsads.com/wiki/index.php/OS_upgrade_files this might help (but it is outdated)
« Last Edit: August 20, 2014, 08:58:57 pm by Netham45 »
Logged

Offline Legimet

  • LV6 Super Member (Next: 500)
  • ******
  • Posts: 336
  • Rating: +29/-0
    • View Profile
Re: Help With 3.9
« Reply #3 on: August 21, 2014, 11:15:56 am »
It's RSA-signed so we can't change it unless we have TI's private key.
Logged

Offline Vogtinator

  • LV9 Veteran (Next: 1337)
  • *********
  • Posts: 1193
  • Rating: +108/-5
  • Instruction counter
    • View Profile
Re: Help With 3.9
« Reply #4 on: August 22, 2014, 07:51:08 am »
Quote
The color models (TI-Nspire CX and CX CAS) cannot be downgraded in any way for now, even with an RS232 adapter and even if the hardware revision is A through I.
They can. Install boot2 3.10 and nlaunch, then you can install whatever OS you like to.
Logged

Offline DJ Omnimaga

  • Clacualters are teh gr33t
  • CoT Emeritus
  • LV15 Omnimagician (Next: --)
  • *
  • Posts: 55943
  • Rating: +3154/-232
  • CodeWalrus founder & retired Omnimaga founder
    • View Profile
    • Dream of Omnimaga Music
Re: Help With 3.9
« Reply #5 on: August 22, 2014, 03:16:21 pm »
Yeah I saw in another topic when that Chinese guy posted how. I was sure TI had blocked this in 3.9
Logged
Pages: [1]   Go Up
« previous next »