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Cannot Install any OS to my CX CAS

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Cannot Install any OS to my CX CAS

Message non lude EMGhost » 03 Juil 2017, 14:46

Hello to all, this is my first post here so I will be quick
Yesterday I wanted to update my Nspire CX CAS to 4.4, but I couldn't because student software gives "OS file is invalid or corrupt" with all the OS files I've downloaded. I've downloaded version 4.4 from TI page, from here, I've also downloaded older versions newer than mine (4.2.0.293) and no luck. So I had no better idea than erase my actual OS to see if there was a problem there. And now im stuck in "OS not found" Screen and not an OS that works, what can I do? I really need my calc for Wednesday for a pair of exams :(
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Re: Cannot Install any OS to my CX CAS

Message non lude pavelecini » 03 Juil 2017, 14:55

Hello today also presented the same problem "OS not found" in my Texas TI-nspire cx CAS :(
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Re: Cannot Install any OS to my CX CAS

Message non lude critor » 03 Juil 2017, 16:33

EMGhost a écrit:Hello to all, this is my first post here so I will be quick
Yesterday I wanted to update my Nspire CX CAS to 4.4, but I couldn't because student software gives "OS file is invalid or corrupt" with all the OS files I've downloaded. I've downloaded version 4.4 from TI page, from here, I've also downloaded older versions newer than mine (4.2.0.293) and no luck. So I had no better idea than erase my actual OS to see if there was a problem there. And now im stuck in "OS not found" Screen and not an OS that works, what can I do? I really need my calc for Wednesday for a pair of exams :(


Hi !

If you have a genuine TI-Nspire CX CAS, then the latest 4.4 CX CAS OS should work :
archives_voir.php?id=811548
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Re: Cannot Install any OS to my CX CAS

Message non lude EMGhost » 03 Juil 2017, 17:09

critor a écrit:
EMGhost a écrit:Hello to all, this is my first post here so I will be quick
Yesterday I wanted to update my Nspire CX CAS to 4.4, but I couldn't because student software gives "OS file is invalid or corrupt" with all the OS files I've downloaded. I've downloaded version 4.4 from TI page, from here, I've also downloaded older versions newer than mine (4.2.0.293) and no luck. So I had no better idea than erase my actual OS to see if there was a problem there. And now im stuck in "OS not found" Screen and not an OS that works, what can I do? I really need my calc for Wednesday for a pair of exams :(


Hi !

If you have a genuine TI-Nspire CX CAS, then the latest 4.4 CX CAS OS should work :
archives_voir.php?id=811548


I tried with the latest 4.4 and i couldn't get it to work, but I made a complete format again and finally I could install latest OS, apparently it was a document the thing that didn't let me upgrade, I didn't know that was possible, you can close this if you want
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