π
<-
Chat plein-écran
[^]

What happens if I somehow manage to install older OS on Y HW

:32tins: :32tinsktpb: :32tinsktpn: :32tinscas: :32tinstpkc: :32tinstpktpb: :32tinstp: :32tinscastp: :32tinscmc: :32tinscx: :32tinscxcas:

What happens if I somehow manage to install older OS on Y HW

Unread postby SuperXX » 15 May 2021, 10:35

I was searching on how could I downgrade my revision Y calculator from OS 4.2 to OS 3.6, but it seems that my calculator doesn't get lower then that and nasgmr doesn't allow me to do that neither.
So I was wondering, what really happens if a system lower then then the supported by the hardware revision would do. Why it can't be done? Does the hardware really change a lot from a older revision to the Y revision?

Thank You
User avatar
SuperXX
Niveau 4: MC (Membre Confirmé)
Niveau 4: MC (Membre Confirmé)
Level up: 96%
 
Posts: 26
Joined: 15 May 2021, 10:25
Gender: Male
Calculator(s):

Online

Re: What happens if I somehow manage to install older OS on

Unread postby critor » 15 May 2021, 10:45

nsNandMgr
(or its successor BtMg)
should work.
You need to send the older OS immediately after patching the minOS version. If the calculator does reboot in the meantime, the minOS version is going to be set again.

I don't remember trying it, but OS versions 4.0.0 and lower should be able to run on hardware revision W+, but with an incorrect and unreadable display. So pretty useless.
Image
User avatar
critorAdmin
Niveau 19: CU (Créateur Universel)
Niveau 19: CU (Créateur Universel)
Level up: 15.7%
 
Posts: 37655
Images: 10576
Joined: 25 Oct 2008, 00:00
Location: Montpellier
Gender: Male
Calculator(s):
Class: Lycée
YouTube: critor3000
Twitter: critor2000
Facebook: critor.ti
GitHub: critor

Re: What happens if I somehow manage to install older OS on

Unread postby SuperXX » 15 May 2021, 14:57

So. If I update the calculator to a newer version, like OS 4.4 and then remove the minOS protection and then instead of downgrading the calculator with the .tcc file to OS 4.2, I can just install 3.6 and it should work? And if something goes wrong can I just go to the mantaince menu, uninstall the OS and the install the 4.2 version it should go back to normal?
User avatar
SuperXX
Niveau 4: MC (Membre Confirmé)
Niveau 4: MC (Membre Confirmé)
Level up: 96%
 
Posts: 26
Joined: 15 May 2021, 10:25
Gender: Male
Calculator(s):

Re: What happens if I somehow manage to install older OS on

Unread postby Ti64CLi++ » 15 May 2021, 14:59

Yes you should be able to do exactly that :)
Image
User avatar
Ti64CLi++Modo
Niveau 16: CC2 (Commandeur des Calculatrices)
Niveau 16: CC2 (Commandeur des Calculatrices)
Level up: 13.8%
 
Posts: 3398
Images: 75
Joined: 04 Jul 2014, 14:40
Location: Clermont-Ferrand 63
Gender: Male
Calculator(s):
Class: MP
GitHub: Ti64CLi

Online

Re: What happens if I somehow manage to install older OS on

Unread postby critor » 15 May 2021, 15:04

SuperXX wrote:So. If I update the calculator to a newer version, like OS 4.4 and then remove the minOS protection and then instead of downgrading the calculator with the .tcc file to OS 4.2, I can just install 3.6 and it should work?

Sorry if I haven't been clear enough.

OS versions 4.0.0 and below don't support the hardware revision W+ newer screen, there is no way it's going to
work
.

3.6 OS is going to be totally unusable once installed on your calculator.
Image
User avatar
critorAdmin
Niveau 19: CU (Créateur Universel)
Niveau 19: CU (Créateur Universel)
Level up: 15.7%
 
Posts: 37655
Images: 10576
Joined: 25 Oct 2008, 00:00
Location: Montpellier
Gender: Male
Calculator(s):
Class: Lycée
YouTube: critor3000
Twitter: critor2000
Facebook: critor.ti
GitHub: critor

Re: What happens if I somehow manage to install older OS on

Unread postby Ti64CLi++ » 15 May 2021, 15:06

critor wrote:3.6 OS is going to be totally unusable once installed on your calculator.

Yes sorry that's what I meant. It won't be usable, but you should be able to try, out of curiosity for example
Image
User avatar
Ti64CLi++Modo
Niveau 16: CC2 (Commandeur des Calculatrices)
Niveau 16: CC2 (Commandeur des Calculatrices)
Level up: 13.8%
 
Posts: 3398
Images: 75
Joined: 04 Jul 2014, 14:40
Location: Clermont-Ferrand 63
Gender: Male
Calculator(s):
Class: MP
GitHub: Ti64CLi

Re: What happens if I somehow manage to install older OS on

Unread postby SuperXX » 15 May 2021, 15:23

critor wrote:
SuperXX wrote:So. If I update the calculator to a newer version, like OS 4.4 and then remove the minOS protection and then instead of downgrading the calculator with the .tcc file to OS 4.2, I can just install 3.6 and it should work?

Sorry if I haven't been clear enough.

OS versions 4.0.0 and below don't support the hardware revision W+ newer screen, there is no way it's going to
work
.

3.6 OS is going to be totally unusable once installed on your calculator.


Ok ok. Probably I won't do it, but it's great to know it. Thank You
User avatar
SuperXX
Niveau 4: MC (Membre Confirmé)
Niveau 4: MC (Membre Confirmé)
Level up: 96%
 
Posts: 26
Joined: 15 May 2021, 10:25
Gender: Male
Calculator(s):

Re: What happens if I somehow manage to install older OS on

Unread postby SuperXX » 16 May 2021, 13:31

So, I actually tried doing it and for the ones who are wondering what happened, here I have a picture:

Image

It just crashes with this screen, after the loading bar reaches 100%

Just go to the maintance menu, delete the OS and install a compatible one, because it wasn´t usable at all.

Maybe one day someone can port it or something like that
User avatar
SuperXX
Niveau 4: MC (Membre Confirmé)
Niveau 4: MC (Membre Confirmé)
Level up: 96%
 
Posts: 26
Joined: 15 May 2021, 10:25
Gender: Male
Calculator(s):


Return to Problèmes divers / Aide débutants

Who is online

Users browsing this forum: No registered users and 10 guests

-
Search
-
Social
-
Featured topics
Comparaisons des meilleurs prix pour acheter sa calculatrice !
Découvre les nouvelles fonctionnalités en Python de l'OS 5.2 pour les Nspire CX II
Découvre les nouvelles fonctionnalités en Python de l'OS 5.5 pour la 83PCE/84+C-T Python Edition
Omega, le fork étendant les capacités de ta NumWorks, même en mode examen !
1234
-
Donations / Premium
For more contests, prizes, reviews, helping us pay the server and domains...
Donate
Discover the the advantages of a donor account !
JoinRejoignez the donors and/or premium!les donateurs et/ou premium !


Partner and ad
Notre partenaire Jarrety Calculatrices à acheter chez Calcuso
-
Stats.
630 utilisateurs:
>611 invités
>13 membres
>6 robots
Record simultané (sur 6 mois):
6892 utilisateurs (le 07/06/2017)

-
Other interesting websites
Texas Instruments Education
Global | France
 (English / Français)
Banque de programmes TI
ticalc.org
 (English)
La communauté TI-82
tout82.free.fr
 (Français)