« previous next »
Pages: [1]   Go Down

Author Topic: TI Nspire CX version downgrade  (Read 7493 times)

0 Members and 1 Guest are viewing this topic.

Offline Rykattanak

  • LV0 Newcomer (Next: 5)
  • Posts: 1
  • Rating: +0/-0
    • View Profile
TI Nspire CX version downgrade
« on: October 19, 2014, 03:15:32 pm »
Is it possible to downgrade the version of my TI Nspire CX calculator ? I've updated it to 3.9 by mistake, and now I want to downgrade it to 3.2 or smth like that, is it possible ?


Thank You.
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: TI Nspire CX version downgrade
« Reply #1 on: October 20, 2014, 11:41:36 am »
It depends what hardware revision your calc has. If your serial number ends with letter J or higher, then it's impossible to downgrade. Otherwise, you need an Arduino or RS232-TTL serial interface found online like Ebay then follow tutorials that can be found in older topics to downgrade.
Logged

Offline Alex Twigg

  • LV1 Newcomer (Next: 20)
  • *
  • Posts: 6
  • Rating: +0/-0
  • This is not personal...
    • View Profile
Re: TI Nspire CX version downgrade
« Reply #2 on: October 22, 2014, 07:10:47 pm »
soo what if it end in a j like mine? what are the steps to downgrading it or a link? thanks
Logged
I use a calculator as a substitute for a book and I am still cool in school...

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: TI Nspire CX version downgrade
« Reply #3 on: October 22, 2014, 08:21:01 pm »
With J hardware, if you got OS 3.9 then you are screwed. Sell your calculator or get a refund, explaining you chose the wrong calc, then buy an older one from the secondary market, asking the reseller about the serial number first.
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: TI Nspire CX version downgrade
« Reply #4 on: November 03, 2014, 01:24:39 am »
Quote from: Alex Twigg on October 22, 2014, 07:10:47 pm
soo what if it end in a j like mine? what are the steps to downgrading it or a link? thanks
Ok, forget what I just said in my last post, yesterday an utility to downgrade from OS 3.9 just got released: http://tiplanet.org/forum/viewtopic.php?p=172099&sid=fb36298f23817f0a43d587b870cf0c4b#p172099

Keep in mind, however, that hardware J only supports OS 3.6 and higher, so everytime you reboot your calculator, you will need to re-install Ndless, but at least it's better than nothing now. :P
Logged

Offline The_King

  • LV5 Advanced (Next: 300)
  • *****
  • Posts: 247
  • Rating: +6/-2
  • Ⓣⓗⓔ Ⓖⓐⓜⓔ ⓍⒹ
    • View Profile
Re: TI Nspire CX version downgrade
« Reply #5 on: November 03, 2014, 01:14:34 pm »
Quote from: DJ Omnimaga on November 03, 2014, 01:24:39 am
Quote from: Alex Twigg on October 22, 2014, 07:10:47 pm
soo what if it end in a j like mine? what are the steps to downgrading it or a link? thanks
Ok, forget what I just said in my last post, yesterday an utility to downgrade from OS 3.9 just got released: http://tiplanet.org/forum/viewtopic.php?p=172099&sid=fb36298f23817f0a43d587b870cf0c4b#p172099

Keep in mind, however, that hardware J only supports OS 3.6 and higher, so everytime you reboot your calculator, you will need to re-install Ndless, but at least it's better than nothing now. :P

OR he can use nlaunch but only keep 3.6 os and delete the other one???
Logged

Offline Hayleia

  • Programming Absol
  • Coder Of Tomorrow
  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 3367
  • Rating: +393/-7
    • View Profile
Re: TI Nspire CX version downgrade
« Reply #6 on: November 03, 2014, 04:04:10 pm »
Quote from: DJ Omnimaga on November 03, 2014, 01:24:39 am
Keep in mind, however, that hardware J only supports OS 3.6 and higher
Hardware J actually supports 3.2.3 and higher but yeah, as far as Ndless is concerned, we can say "3.6 and higher".

Quote from: The_King on November 03, 2014, 01:14:34 pm
OR he can use nlaunch but only keep 3.6 os and delete the other one???
nlaunch doesn't work on hardware J as far as I know.

But yeah, as DJ_O said, you can now downgrade from 3.9 to 3.6 and use Ndless 3.6.
Logged
I own: 83+ ; 84+SE ; 76.fr ; CX CAS ; Prizm ; 84+CSE
Sorry if I answer with something that seems unrelated, English is not my primary language and I might not have understood well. Sorry if I make English mistakes too.

click here to know where you got your last +1s
Pages: [1]   Go Up
« previous next »