Question about Texas Instruments TI-84 Plus Calculator

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Won't work at all

Went to take the SAT and needed my calculator. When I turned it on, nothing happened. Changed the batteries and tried again. Partial number for 1 second and then nothing. Any suggestions?

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TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on at all. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

Posted on Mar 09, 2010

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On my dish remote for tv 2 sat button stopped working and wont light up. all other buttons work. i have changed batteries but nothing changed. How do i fix this because i dont wan to waste money on an


Kevin rico,

I can definitely check this out with you. Does the SAT button light up when you press any buttons at all? If you press SAT, can you operate the receiver?

If neither of those work then the remote most likely needs to be replaced. If you would like to try that option, just send me an email at thomas.faust@dish.com and i'll assist you further!

Tommy Faust
DISH Social Media Representative

Jul 05, 2012 | DISH Network 142923 Remote Control

1 Answer

It just went dead..no display, changed batteries and still nothing. I was using it when this happened.


It is possible that the calculator went dead because the main batteries were depleted. However when you change the main batteries, it is often the case that the display contrast changes, and may become too light for you to see anything. If that is the case, you can increase the contrast of the screen.
Press the [2nd] key and release it.
Press and HOLD the [UpArrow].

The contrast should increase and the screen darkens. Keep pressing the UpArrow until the display is satisfactory to you.

Jan 31, 2012 | Texas Instruments TI-84 Plus Calculator

1 Answer

Calculator went dead ... changed the AAA batteries .. still nothing .. changed the CR1616 battery .. still nothing ... worked great last night while doing my homework .. didn't drop it or bang it .....


It is possible that the screen dimmed too much after you changed batteries. One of the two procedures will work.

Press the [2nd] key and release it.
Press the UpArrow and keep it held down for a while. As you hold pressure on UpArrow key the screen should darken. Stop when satisfied.

Alternative.

Press [2nd] key and hold pressure.
Press the UpArrow repeatedly until screen darkens to your liking.

Sep 21, 2011 | Texas Instruments TI-85 Calculator

1 Answer

All of the sudden it stopt working. Nothing happens when I push the ON button. I changed batteries. I took the backup battery out and put it back in (didn't put new one). Nothing helps. I changed the...


It is sold with an dapator that powers the calculator through the USB port. Use it and you will eliminate any doubt about the batteries. Try resetting the calculator.

Aug 26, 2011 | HP 50g Graphic Calculator

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My TI 83 plus is not working. when i press"on" nothing happens. I changed my AAA batteries, i even change the back maxwell battery, but nothing happened


TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

If this doesn't do it, please reply to this post and we'll go on from there.

Sep 27, 2010 | Texas Instruments TI-83 Plus Calculator

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My remote is not working. On the back it says 6.2 IR/UHF PRO Canada: 1707A-DKNFSK03 139779 It used to work fine, then I had to change the batteries and it no longer works. The lights work but nothing...


The switch that selects what type of remote style (UHF or IR) is probably the culpret.


pull the battery cover and take out the blue tab
greenkeys.jpg greenkeyuhf.jpg blueblackkeys.jpg silverkey.jpg









Play with the switch unitl it works and put the tab back in (the tab is supposed to select the right value for you but it may not be properly aligned.

i was about to toss mine but this worked.

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A friend gave me a TI-86 graphing Calc. I wont turn on!!!


maybe try changing the small memory battery inside, I think its a cr1616 or cr1620. If this doesn't work use it as a paperweight.

Apr 23, 2009 | Texas Instruments TI-86 Calculator

1 Answer

Calculator will not turn on


Try the following

1) Remove one of the AAA batteries, hold down on the DEL key while reinserting the AAA battery. The handheld might display Waiting…Please install calculator software now. Ignore this message. Remove and reinstall one of the AAA batteries again This time, do not hold down the DEL key.
2) Remove one of the AAA batteries, press and hold the [on] key for 10 seconds, release, replace the battery, then turn the unit on. Adjust the contrast.
3) Remove the AAA batteries for three hours. After the three-hour period, reinsert the batteries and turn the handheld on. Adjust the contrast if necessary.

If needed, reinstall OS by downloading the OS from the TI site and ....
On your computer, choose Start, Programs, TI Tools, TI Connect, TI OS Downloader.

(I am not the one who came up with this answer, but found it on an other site. If this doesn't work, please let me know)

Gr Marijn

Aug 27, 2007 | Texas Instruments TI-84 Plus Calculator

2 Answers

My HP won't turn on anymore


I just fixed two "failure to power on" 49g+'s. For the first one I did a moderate slap of the unit against my thigh and then tried a reset (I thought maybe the reset was jammed with some debris) - it worked! The second one just needed me to scrape off some corrosion (an old toothbrush works) from the battery terminals - AJ

Jun 24, 2006 | HP 49g+ Calculator

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