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Calculator Community => TI Calculators => General Calculator Help => Topic started by: Zenethoric on September 18, 2013, 08:35:44 am

Title: CX CAS OS problem.
Post by: Zenethoric on September 18, 2013, 08:35:44 am
So i had put a 3.1 update on someone else's Calculator but he somehow screwed around and deleted the OS somehow and now i cant install any os at all saying error installing os (At the end of the installation.) It now just rests on OS not found, install OS now.

Everytime i install 3.1 again it says update succesfully send with the student software and the calculator says error installing OS, and reboots into the error screen again.
Title: Re: CX CAS OS problem.
Post by: ElementCoder on September 18, 2013, 08:56:08 am
Did he by chance upgrade to OS 3.2.4 before removing the OS? That installs a downgrade protection.
Title: Re: CX CAS OS problem.
Post by: critor on September 18, 2013, 08:56:34 am
Yes, but with the downgrade protection it wouldn't say "update succesfully".



Let's reformat the filesystem.

While holding the reset button, press and hold simultaneously the 3 keys Home Enter EE, and then release the reset button.

You should get the maintenance menu around 60% of the loading bar.
Press 4 to clean the whole filesystem.
Title: Re: CX CAS OS problem.
Post by: Zenethoric on September 18, 2013, 09:21:54 am
Did he by chance upgrade to OS 3.2.4 before removing the OS? That installs a downgrade protection.

He did not install a new one.
Title: Re: CX CAS OS problem.
Post by: Zenethoric on September 18, 2013, 09:23:25 am
Yes, but with the downgrade protection it wouldn't say "update succesfully".



Let's reformat the filesystem.

While holding the reset button, press and hold simultaneously the 3 keys Home Enter EE, and then release the reset button.

You should get the maintenance menu around 60% of the loading bar.
Press 4 to clean the whole filesystem.

The buttons wont work, it just loads and goes to "Operating system not found. Install OS now."

EDIT: Sorry for double post.
Title: Re: CX CAS OS problem.
Post by: critor on September 18, 2013, 10:29:57 am
Yes sorry, my mistake - it's Doc Enter EE.
Title: Re: CX CAS OS problem.
Post by: Zenethoric on September 18, 2013, 10:42:36 am
Yes sorry, my mistake - it's Doc Enter EE.

I did that reformatted the whole thing and its working now, thank you <3

Also im not sure if this is right french but im gonna say it anyway, Je t'aime!