"Waiting... Please Install Operating System Now"

"Waiting... Please Install Operating System Now"

My calculator says "Waiting... Please Install Operating System Now", and when pressing any button it says “Error! Press any key to turn unit off. Then turn unit back on”, then the process just repeats itself. I have tried to restart the calculator but it did not work. I also tried to download an OS from the TI website from my Mac to the calculator but it also did not work. I believe it said something along the lines of it wouldn’t download the operating system to the calculator because the calculator didn’t have OS, which was kinda the whole point of trying to download it! I also could have done it wrong though, so any help would be appreciated on how to get my calculator working again.

Asked by: Guest | Views: 351

Total answers/comments: 1

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Guest [Entry]

"Hi, it sounds like your calculator is still functioning, you may have misunderstood how to send over the OS. Here’s a tutorial for the TI 84 Plus CE: TI-84 Plus CE Recovery Techniques.

Although it’s a different model, the steps are very similar. The only difference is you need to send over OS 4.2 which you can find here: https://tiplanet.org/forum/archives_voir... I think your problem may have been you tried to send over the incorrect OS because I couldn’t find a compatible version for your calculator on TI’s website. Where did you happen to find your copy?

Your calculator should be working again. If it’s not, I may have something else you can try to fix it!"