Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

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I accidently disabled apps on my ti84 plus, help

Is there anything i can do?

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  • Anonymous May 12, 2009

    how did you do this?

    I pressed the some buttons and it disabled the apps.

  • Richard Klein
    Richard Klein May 11, 2010

    need more info. could try reinstalling

  • Richard Klein
    Richard Klein Oct 30, 2012

    Update your os and, make sure you do not use 3rd party APP's.

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  • 360 Answers

I heard reinstalling them enables them again

Posted on Sep 05, 2009

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HELP!! afther I connected my TI-84 plus to my pc, it keeps saying: waiting... Please install operating system now. than it says ERROR! Press any key to turn unit off. then turn unit back on... I've tried...


You cannot get the calculator to behave as you describe just by connecting it to the computer. You must have done some other manipulations.
Try to find a classmate who has the same calculator (TI84 Plus or TI84 Plus Silver Edition) and effect a transfer of the OS from the classmate's calculator using an IO cable.

Sep 27, 2013 | Texas Instruments TI-84 Plus Calculator

1 Answer

Os transferring error


The standalone version of the OS for the TI84Plus/TI84Plus SE are not for TI-Nspire with TI84 keyboard. The 94 Plus part of the TI-Nspire is updated when you update the OS of the TI-Nspire. The version numbers are different.
To update you TI84 portion of the TI-Nspire, update the OS for the TI-Nspire. Thy are now at Version 3.2.3.1233

Sep 26, 2013 | Texas Instruments TI-84 Plus Silver...

1 Answer

My TI-84 calculator lost its cover for the batteries. Since then it sometimes can't turn on or show anything when I push the button "on". But sometimes it still can work. But because I havent...


Hi twylazhangzh,

Sound like your Ti 84 Plus is really over loaded and, can't function properly. You can fix that by installing the newest Ti 84 Plus 2.55v. MP OS. operating system.

If you have a friend that has a Ti 84 Plus or, Ti 84 Plus Silver Edition you can connect the two calculators together through the IO link ports and, they can send you a copy of their OS while you receive it on your Ti 84 Plus. Hopefully your friend will have Ti84 Plus 2.55v. MP OS on their calculator or, it might not work.

If you can't find a calculator to connect to you can connect your Ti 84 Plus to a computer that has Ti Connect software on it. If you need to connect your Ti 84 Plus to a computer just keep following my instructions below.

First, you need to download and, install Ti Connect to your computer. If you don't need any help installing Ti Connect goto Procedure 1.

If your computer's OS is XP or Mac and, you need instructions to download and, install Ti Connect click, "Install Ti Connect on my XP or Mac OS". Just follow Procedure 1 at that posting and, come back to this posting to finish downloading and, installing Ti84 Plus 2.55v. MP OS to your calculator.

If your computer's OS is Windows 7 and, you need instructions to download and, install Ti Connect click, "Install Ti Connect on my Windows 7 OS". Just follow Procedure 3 at that posting and, come back to this posting to finish downloading and, installing Ti84 Plus 2.55v. MP OS to your calculator.

Procedure 1 to installing Ti84 Plus 2.55v. MP OS

1). You can also get the latest copy of Ti84 Plus 2.55v. MP OS and, guidebook by going to the Texas Instruments web site. You can get to that site instantly by clicking, "Ti 84 Plus 2.55v. MP OS!" Once your at the Ti site click the Download Item, "Ti84 Plus family operating system". Next you can login or, click "continue as guest". I'd would click the "continue as guest". Once you have click, "continue as guest" the Ti84 Plus family operating system will download to you.

Next, click "SAVE" and then a window to a folder will pop up. It is probably a window to a folder that you download too. If so, you may want to change it and, save to this folder, "My Documents \ My TI Data \ Downloads". You can also go back and, download the Ti 84 Plus guidebook too, if needed.

Link your computer and, Ti 84 Plus calculator with the USB cable or, Direct Black Link cable that came with the Ti 84 Plus calculator. Next, drag the Ti 84 Plus 2.55v MP OS that you saved earlier in "My Documents \ My TI Data \ Downloads" out of that folder and, drop it in the "Ti Connect" icon on the desktop. Click, "Continue" when the "Erase Warning" pops up and, the new Ti 84 Plus 2.55v MP OS will begin to install.

Next, the Ti Device window should pop up and, highlight the port when found that your Ti 84 Plus is using, USB1 cable or, Direct Black COM1.

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When the Ti Device Explorer finds and, highlights your calculator's information click, "Select." Then click, "Yes" when the next window shows up with your calculator's information and, the OS will continue to download. Upon completion the newest Ti 84 Plus 2.55v. MP OS will be installed.

If you run into any trouble with software or, drivers just comment to what failed at this posting and, I'll be glad to help you.




Jan 12, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

I need to earse navnet on my ti84 plus caulater But dont want to get rid of every thing help


  1. Turn calculator ON
  2. Press [2nd][[+] to enter the (MEM)ory management tool.
  3. Press [2:Mem Mgmt/Del...] option
  4. Use Down Arrow to scroll till you reach [A:Apps]
  5. Press [ENTER]
  6. A list of available Apps is displayed. All names should have a star before the name. That means they are archived.
  7. Scroll down to NavNet,
  8. Press the [Del] key.
  9. You will be asked to confirm the deletion.
  10. If you are sure press [2:Yes].

Nov 11, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

School disabled all my apps - now what?


Use the link cable and link your calculator to a calculator where the apps haven't been disabled. From the other calculator, send a program or an app and that should enable the apps on your calculator

Jun 21, 2009 | Texas Instruments TI-84 Plus Calculator

2 Answers

TI-84 dowlnoad error?


Make certain you have registered your calculator on their site. I think you need to enter you internal number. The internal number can be found by pressing the 2nd key, then the plus key and choosing about in this screen.

Jun 09, 2009 | Texas Instruments TI-84 Plus Silver...

2 Answers

Why do some TI83 program work on a TI84 plus and other don't?


Ti 83 and ti84 really have no difference and operate the same. There was something different or you had varibles used by multiple programs that conflicted w/ the ti84 and it would have done the same on the ti83. If you like to rework it and need help email me at raklein62@yahoo.com

Nov 20, 2008 | Texas Instruments TI-84 Plus Silver...

1 Answer

EValueate feature


I'm just guessing (i don't know but this is my best guess) it's an aplication. try under the APPS button. above the sin and button. and look under there. HOPE this helps. sorry if it doesn't there's a good chance it won't GOOD LUCK.

Jan 21, 2008 | Texas Instruments TI-84 Plus Calculator

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