Question about Texas Instruments TI-84 Plus Calculator

3 Answers

Problems with TI - 84 plus

For no reason whenever I press a button the calculator takes some time (10-20 seconds) to carry out the command or respond.
The amount of time varies with the buttons, and some buttons don't work at all (or the calculator just doesn't do anything).
I have replaced the four AAA's and the SR44SW cell, but it has made no difference. Also, sometimes when you turn it on it comes up with the words "RAM Cleared." Any suggestions? I bought it from Calcutronics an ebay seller so it isn't new but hopefully still under warranty.

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  • gigiz Apr 18, 2008

    My T1-84 is acting up. When I turn it on, it says RAM CLEARED. It takes about 10 seconds of pressing on any button for it to take. I've replaced the batteries but still won't work. Help?

  • jaygees1 Apr 18, 2008

    No I still haven't found a solution, hopefully a replacement is on its way,but I haven't heard from Calcutronics as yet. Good luck!

  • jaygees1 Apr 18, 2008

    Yep tried all of the above . It comes on for a second then says replace batteries and turns off. The next time it comes on , its back with the ram cleared message......go figure...........have been on the TI website and tried their suggestions but no luck.

  • snacks tasty Sep 13, 2008

    I had the problem but thanks Kit1094 your solution fixed it.

  • Becca Hammer Oct 07, 2008

    that was the same exact thing that happened to me but if you do blow in the I/O thing it fixes it but for me it only worked for 10 secs

  • Anonymous Oct 10, 2008

    I had the same problem. Tried everything deleting memory, programs, resetting everything. Reloaded OS, tried everything. Then saw this solution for blowing in the I/O port and I thought no way but give it a try anyway.. Blew it out and now it works great.. Thanks for sharing!

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I actually fixed mine!!!! The same thing happened to me. I found somewhere that the no/slow key response could be due to a short in the I/O socket. I blew into it really hard (you may want to use compressed air, but I didn't have any onhand), and it works perfectly now!!!!!!!!!! I hope this helps.

Posted on Sep 09, 2008

Thank you so much!!!! It worked!

Posted on Oct 07, 2008

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I have this same problem! Did you ever find a solution??

Posted on Apr 18, 2008

  • gigiz Apr 18, 2008

    Sorry, didn't mean that as a solution!

  • gigiz Apr 18, 2008

    Did you try replacing the backup battery? I think I will try that, read it somewhere...

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I cant figure out how to be able to take a fraction and subtract it to another fraction on my TI-84 PLUS calculator


Given two fractions a over b and c over d, you can subtract the first from the second by entering
( c / d ) - ( a / b ) ENTER

The calculator will give you a decimal result, which you can (probably) convert back to a fraction by using the >Frac command. Press MATH 1 ENTER

Feb 02, 2011 | Texas Instruments TI-84 Plus Calculator

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My TI-84 plus silver edition calculator is not responding. Whenever I press a button it takes forever to put it up on the screen or it doesn't work at all! I need some serious help with this. I tried...


Hi purzabumafu8,

You need to re-install the Ti 84 Plus OS on both calculators, ASAP!!! You can fix these problems by installing the newest Ti 84 Plus 2.55v. MP OS, operating system. Use fresh batteries.

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 USB or, IO link ports. Then 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. Link the two calculator together through the USB or, IO link ports with the proper cable. If don't have another reliable calculator to connect too, you'll have to connect the calculator to a computer to download the OS, goto Procedure 5. If your downloading off another calculator goto Procedure 1.

Important Note: Never disconnect a TI Connectivity Cable during a transfer. Lost of power during installation of OS will destroy your calculator.

Procedure1. Procedure to linking to another calculator.
On their calculator press, [2nd][Link][G] [Right-Arrow]. On your calculator press, [2nd] [Link] [Right-Arrow] [Enter] and, then press [ENTER] on their calculator too. Their calculator should say, "TRANSMIT" and, your's will say "Receiving." Then on both calculators once transfer is complete press, [2nd][MODE] to quit and, return to the Home screen. If the OS was transferred then your finished with these procedures. If your calculator won't turn on or, is locked up try the Procedure 2, below.

Procedure 2.

Remove one of the AAA batteries. Press and hold the [DEL] key. While holding [DEL], reinsert the AAA battery and then turn the calculator on. The calculator should display
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Procedure 3.

Remove all of the batteries including the round lithium battery for 5 minutes. After the 5 minute period, reinsert all of the batteries and turn the calculator on. Adjust the contrast if necessary. Goto Procedure 2.


Procedure 4.

If the above process did not work. Try re-doing the Procedure 2, and, this time extend the time in Procedure 3, by 5 minutes to 10 minutes before you put all the batteries back in the calculator. These calculators can be a little stubborn at times so, keep trying Procedure 2.



Procedure 5.

If you can't find a calculator to connect too, 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 make sure the Ti Connect software is operating properly. You do not want any hang-ups while installing the Ti 84 Plus OS.
Procedure 6. Procedure to installing the latest Ti84 Plus 2.55v. MP OS. TI OSDownloader does not always install the latest OS.
You can 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.
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Procedure 7.
Important Note: Never disconnect a TI Connectivity Cable during a transfer. Lost of power during installation of OS will destroy your calculator.
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 it finds what your Ti 84 Plus is using, USB1 cable or, Direct Black COM1.
oneplusgh_48.jpg

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.

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1 Answer

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If that isn't it, then remove all four AAA batteries. Press and hold the ON key for ten seconds. Replace the batteries and turn the calculator on. (You may have to adjust the contrast as described above.)

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kindly rate me.. thanks for using fixya..



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