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Omnimaga => Site Feedback and Questions => Topic started by: Siphonic_Sugar on September 17, 2015, 09:00:59 pm

Title: TI-Nspire Downgrade Problems
Post by: Siphonic_Sugar on September 17, 2015, 09:00:59 pm
HELP ME! I downgraded my TI-Nspire's software from 3.9.1 to 3.6. It was all working and everything. I then installed Ndless, which had a successful installation. But when I unplugged the calculator from the computer, it shut off. When ever I try to turn it back on, it resets, and when it gets to the home screen, it shuts off. I already tried to reset it and it did not help.  I used the downgrade fix 391, instead of the downgrade fix 390.  What should I do to fix it?  The calculator works perfectly fine when plugged into the computer, but when I unplug it, the device turns off.
WHAT SHOULD I DO?!?
Title: Re: TI-Nspire Downgrade Problems
Post by: pimathbrainiac on September 17, 2015, 09:03:43 pm
You should either change the batteries or charge it (depending on the model). Sounds like a power problem more than anything.
Title: Re: TI-Nspire Downgrade Problems
Post by: Siphonic_Sugar on September 17, 2015, 09:21:46 pm
Okay, I'll try that, but what if that doesn't work? Oh, I forgot to mention, it is a TI-Nspire CX.
Title: Re: TI-Nspire Downgrade Problems
Post by: Adriweb on September 17, 2015, 10:29:22 pm
There's no problem with the battery itself.
It's a known fact that if your calculator was shipped with 3.9.1, you can't go back to previous versions, because the hardware is sufficiently different enough not to be supported by previous OSes related to battery etc.
Your only choice is to go back to 3.9.1 and install ndless 3.9 if you need it.
Title: Re: TI-Nspire Downgrade Problems
Post by: Siphonic_Sugar on September 18, 2015, 07:54:46 am
The only way I could fix it was upgrading to 4.0... So now I have to wait for Ndless to be released for that version, or what?
Title: Re: TI-Nspire Downgrade Problems
Post by: Hayleia on September 18, 2015, 10:30:29 am
What even the 3.9.1 wouldn't transfer ? Only the 4.0 worked ?
Title: Re: TI-Nspire Downgrade Problems
Post by: Adriweb on September 18, 2015, 01:17:17 pm
3.9.1 should have worked indeed. This specific process happened to a few people, and were able to go back to 3.9.1...
But anyway, yes, now you're stuck with v4.0

What's the hardware revision of your calculator, out of curiosity ? It's the last character of the serial number on the back of the device.
Title: Re: TI-Nspire Downgrade Problems
Post by: Siphonic_Sugar on September 20, 2015, 08:23:48 pm
Well, I actually did not try installing 3.9.1.  Could someone give me a link for Ndless 3.9.1?

The hardware revision letter is T.
Title: Re: TI-Nspire Downgrade Problems
Post by: Hayleia on September 21, 2015, 02:10:45 am
Well now it's too late. Adriweb told you in his post to put 3.9.1 so you could have Ndless but you decided to put the only OS that is not Ndlessable and from which you can't go back.
Title: Re: TI-Nspire Downgrade Problems
Post by: Siphonic_Sugar on September 21, 2015, 04:06:22 pm
Okay, but could you just tell me the link anyway, I want it for reference for anyone of my friends who wants me to get it on their TI-Nspire at school. :D
Title: Re: TI-Nspire Downgrade Problems
Post by: Vogtinator on September 21, 2015, 05:09:37 pm
http://ndless.me is the official homepage.
Title: Re: TI-Nspire Downgrade Problems
Post by: Siphonic_Sugar on September 21, 2015, 05:10:04 pm
Okay, thanks!  ;D

Wait, can I not downgrade to 3.9.1?
Title: Re: TI-Nspire Downgrade Problems
Post by: Vogtinator on September 22, 2015, 02:39:25 am
No, 4.0.0.235 sets the minumum version to itself.
Title: Re: TI-Nspire Downgrade Problems
Post by: Siphonic_Sugar on September 22, 2015, 07:29:57 am
Oh boy! Now I'll never be able to play Pokemon!

Well, maybe if Ndless comes out for 4.0.0.235.
Title: Re: TI-Nspire Downgrade Problems
Post by: Hayleia on September 22, 2015, 10:03:30 am
Oh boy! Now I'll never be able to play Pokemon!
Well I still don't understand how you managed to think that installing 4.0 was a good idea if you used something called "downgradefix" to install 3.6, which obviously means that there are downgrade protections.
Title: Re: TI-Nspire Downgrade Problems
Post by: Siphonic_Sugar on September 22, 2015, 04:42:22 pm
I did use the downgrade fix, I was just stupid and installed 4.0.0.235 instead of 3.9.1.