iFixit - Answers With Device "TI-84 Plus"

TI-84 Plus: Will not turn on even after replacing batteries

Wed, 23 Oct 2024 20:32:38 -0700

I replaced the AAA batteries but my calculator still won’t turn on

⟐ Commented 10월 23, 2024 at 20:32 GMT-7

TI-84 Plus: Calculator turns on but keys don't work

Wed, 23 Oct 2024 18:15:54 -0700

Hi,

I have a TI-84 Plus. The calculator’s keys stopped working, as I was using it yesterday. I could still see the numbers I had typed, but could no longer type anything.

I took the batteries out and put them back in. I was able to turn on the device, but couldn’t do anything else. So power button is the only thing that works for me. I can’t even turn it back off.

I tried removing the internal battery. Didn’t work.

I took the entire calculator apart and cleaned the keys. Didn’t work.

I tried connecting the calculator to a computer via a usb mini cable but I wasn’t able to make the TI Connect CE software recognize the device. When I try to connect the TI when it is ON, it stops blinking with the cursor the moment the usb cable is plugged in. However, the TI CONNECT CE software doesn’t list it as a connected calculator.

Is there anything else I can do to help fix it?

⟐ Answered 10월 23, 2024 at 18:15 GMT-7

TI-84 Plus: Calculator seems to be unresponsive

Wed, 14 Aug 2024 06:00:26 -0700

My calculator turns on and shows the ram cleared after turning on and then when you try to input anything the cursor just gets stuck and hangs. Nothing happens after that. it is unresponsive and does not responds to any input given and just stays blank. i have removed all the five batteries and replaced but still the same. when i try to connect it with my laptop it not being detected by the software.

⟐ Answered 8월 14, 2024 at 6:00 GMT-7

TI-84 Plus: Sometimes doesn't turn on, also randomly goes off

Sat, 25 May 2024 07:37:56 -0700

I saw the issue for randomly shutting off. I'm not sure if the won't turn on is the same issue or a different one. I can hit the on button and nothing happens, but then after trying a few times, it will come on. It also randomly will shut off.

⟐ Answered 5월 25, 2024 at 7:37 GMT-7

TI-84 Plus: Why is my screen frozen

Tue, 14 Nov 2023 07:26:50 -0700

When I turn on my calculator I none of the buttons I press work, the cursor is blinking on the screen but I can’t even turn the calculator off. I tried removing the batteries and charging it and that didn’t work.

⟐ Answered 11월 14, 2023 at 7:26 GMT-7

TI-84 Plus: Why does the screen show scattered lines?

Sat, 09 Sep 2023 07:15:07 -0700

This is what it looks like when its on the normal screen, right after being switched on. What can I do to fix this?

⟐ Answered 9월 09, 2023 at 7:15 GMT-7

TI-84 Plus: Not responding to install software

Tue, 09 May 2023 06:52:29 -0700

I am trying to reinstall the OS but it will not respond. When I try to connect it to my computer it does not show up but other similar calculators do so I know the cord is good. I have replaced all the batteries.

I get stuck in a loop of "waiting...please install operating system now" and "Error, press any key to turn unit off, then turn unit back on.

Any help would be appreciated.

⟐ Commented 5월 09, 2023 at 6:52 GMT-7

TI-84 Plus: Been charging for over 8 hours, light indicates still charging

Fri, 07 Oct 2022 18:11:13 -0700

So absolute disclaimer; This calculator worked fine in high school for me. However, it’s been around 4 years and as such the calculator has been sitting in a box unused for that time. I’m trying to see if it still works to sell it. At the time I’m posting this it’s been charging with the amber light indicator for 21 hours. Over this time I’ve tried turning it on multiple times with no luck. Should I let it continue to charge until I get a green light or is something wrong?

⟐ Answer accepted 10월 07, 2022 at 18:11 GMT-7

TI-84 Plus: Why do I have blank lines going across my screen?

Fri, 24 Sep 2021 13:16:10 -0700

Everytime I try to use my calculator I cannot read it because there are blank lines across my screen. Is there anyway I can fix this?

⟐ Commented 9월 24, 2021 at 13:16 GMT-7

TI-84 Plus: Why does my display have these black lines?

Fri, 04 Jun 2021 06:38:35 -0700

I replaced the batteries already and also tried resetting ram so I think this might be a mother board problem. How ever when I graph it looks alright so i don’t think it’s display issues

⟐ Answered 6월 04, 2021 at 6:38 GMT-7

TI-84 Plus: Is there any way to remove the board from the case?

Tue, 12 Jan 2021 00:11:34 -0700

my lcd is dead and i need to remove the board.

⟐ Answer accepted 1월 12, 2021 at 0:11 GMT-7

TI-84 Plus: Why can I only see the upper part of my screen?

Wed, 30 Sep 2020 09:10:16 -0700

I turned on my calculator and only the upper half of my screen is showing. I’ve changed the batteries and reset the calculator and it is still not working. I have attached an image of my calculator for reference (I darkened the screen so the problem can be seen better).

⟐ Answer accepted 9월 30, 2020 at 9:10 GMT-7

TI-84 Plus: Zebra lines on TI-84 Plus calculator screen- What can I do to fix?

Fri, 03 Apr 2020 23:23:35 -0700

I don’t know if the TI-84 Plus calculator was dropped, but the screen is 2/3 stripes, therefore the calculator cannot be used. I tried replacing the batteries and a reset.

⟐ Answer accepted 4월 03, 2020 at 23:23 GMT-7

TI-84 Plus: Calculator doesn't turn on, even with new batteries.

Sun, 25 Aug 2019 08:37:18 -0700

It’s definitely not a screen brightness issue. Once, it started working after I switched batteries around a couple times and shook the calculator, but became impossible to turn on again the next day.

⟐ Answer accepted 8월 25, 2019 at 8:37 GMT-7

TI-84 Plus: My calculator sometimes turns on an works fine, other times doesn't

Sun, 10 Feb 2019 20:28:25 -0700

My calculator sometimes turns on and works fine. However, other times does not turn on, it’s not a bettery problem, I think it might be a screen problem as sometimes when i press the ON button, lines appear and disapear quickly on the screen. What can I do or does is it possible to repair?

⟐ Answered 2월 10, 2019 at 20:28 GMT-7

TI-84 Plus: Why doesn't my TI-84 calculator turn on

Thu, 15 Nov 2018 20:01:09 -0700

Why doesn’t my TI-84 calculator turn , I had change the batteries over a month ago or a little less than a month ago?? Please help

⟐ Answered 11월 15, 2018 at 20:01 GMT-7

TI-84 Plus: It does not work..!

Thu, 20 Sep 2018 19:58:08 -0700

I tried to use shift+ sine but i think i accidentally pressed wrong button... Dont know why but after that when i press shift and sine a different screen appears. Then after a few minutes, it does not work... All the buttons (except ‘on' button) dont work....... Please help me. Thanks.

Now i can't turn on the calculator....

⟐ Commented 9월 20, 2018 at 19:58 GMT-7

TI-84 Plus: Enter button not working

Sun, 12 Aug 2018 08:41:14 -0700

My battery leaked acid yesterday and after cleaning it up, the calculator worked perfectly. However, today when I went to use it, every key worked except for the enter key. What can I do?

⟐ Answered 8월 12, 2018 at 8:41 GMT-7

TI-84 Plus: Two Inputs, One Graph?

Tue, 07 Aug 2018 14:23:20 -0700

So I have two inputs put into my (Y=) values and both of the equal signs are "highlighted". Then when I go into the graph, only one equation shows up. Yes they are 2 different equations, one is a cubic and the other is a quadratic so they should look totally different. If I go to the table menu after viewing the graph, only 1 set of values appears and if I go back to the (Y=) menu, the Y2 equals sign isn't "highlighted" anymore either. Bottom line is that no matter what, only one equation shows up on the graph.

⟐ Answer edited 8월 07, 2018 at 14:23 GMT-7

TI-84 Plus: Cursor stuck going up.

Tue, 07 Aug 2018 14:07:24 -0700

When I turn on my ti-84, the cursor on my screen is stuck constantly going up. It scrolls all the way through my previous calculations, and then gets stuck at the top when there is nothing else to scroll through. When I click on the down arrow, the cursor appears to flash normally as opposed to rapidly, but I still can’t type anything else into my calculator. Is this some sort of keyboard error? None of my keys are stuck, so maybe it’s soemthing deeper in the calculator.

⟐ Answer edited 8월 07, 2018 at 14:07 GMT-7