iFixit - Answers With Device "TI-84 Plus CE"

TI-84 Plus CE: waarom kan hij geen tabel maken?

Mon, 20 Oct 2025 03:32:53 -0700

Bij een tabel maken adhv een formule (Bij y1) blijft de rekenmachine eindeloos lang laden, hij maakt uiteindelijk geen tabel.

⟐ Answered oktober 20, 2025 at 3:32 MST

TI-84 Plus CE: error: disabled, hoe verhelp ik dit?

Thu, 26 Jun 2025 03:04:55 -0700

Ik krijg elke keer als ik op enter druk een error disabled. Ik zou niet weten waardoor dit komt en ik kan nergens vinden hoe ik het verhelp.. zouden julie mij kunnen helpen?

⟐ Answered juni 26, 2025 at 3:04 MST

TI-84 Plus CE: Is er logfile (geheugen/geschiedenis) in het toestel?

Wed, 12 Jun 2024 09:18:29 -0700

Kan ik zien wanneer (datum /tijdstip) wanneer er de laatste keer alles gewist is? Ik ben dus opzoek naar de geschiedenis van het toestel. Is dit mogelijk? Zo ja, hoe kan ik dit nakijken?

Can I see when (date /time) when everything was last deleted? So I am looking for the history of the device. Is this possible? If yes, how can I check this?

TI-84 Plus CE: ik krijg hem niet meer aan

Tue, 09 Jan 2024 09:03:56 -0700

Als ik op het aan knopje druk zie ik heel even een wit scherm en daarna word het meteen weer zwart.

⟐ Commented januari 09, 2024 at 9:03 MST

TI-84 Plus CE: hoe kan je je rekenmachine resetten

Sat, 02 Sep 2023 08:23:21 -0700

ik heb perongeluk alles via het TI Connect tm CE programma verwijderd. hij doet nu helemaal niks meer wat moet ik doen?

⟐ Answered september 02, 2023 at 8:23 MST

TI-84 Plus CE: Knoppen GR werken soms niet en hij gaat soms plots aan

Sat, 01 Jun 2019 05:21:04 -0700

Sinds een paar dagen geleden doet mijn GR plotseling een beetje vreemd. Nouja plotseling, dat weet ik niet helemaal zeker. Het zou zo kunnen zijn dat er een beetje water bij is gekomen dat aan mijn brooddoos zat nadat ik hem had afgewassen. Maar dan heb ik het ook echt maar over een heel klein beetje water en de klep zat tijdens dit gebeure wel op mijn GR.

Het probleem : soms stoppen de knoppen van mijn GR heel even of voor een langere tijd met werken. En de GR gaat soms plotseling aan zonder dat ik er iets mee doe.

⟐ Answered juni 01, 2019 at 5:21 MST

TI-84 Plus CE: TI-84 Plus CE repeatedly turning on and off when charging.

Tue, 05 May 2026 10:24:16 -0700

My TI-84 Plus CE will repeatedly turn on and off repeatedly in about 1 second intervals while connected to the charging cable, regardless of the power source its connected to (wall outlet, laptop, power brick etc.). It will not turn on at all if not plugged in. I've tried pressing the reset button to no avail. The cable is essentially brand new. This also happened while it should have been at full charge, though it had been about 2 months since it was last fully charged, but it wasn't used in that time until I tried to turn it on recently. I tried taking the battery out and putting back in, and that didn't make a difference either.

⟐ Answer accepted mei 05, 2026 at 10:24 MST

TI-84 Plus CE: My calculator is not charging or turning on

Tue, 05 May 2026 05:17:27 -0700

Hi, I just got my calculator (TI-84 plus CE) in the mail and it wasn’t turning on so I plugged it in using the USB cable provided that says it’s for “data transfer and convenient charging”. I am worried because the screen is flashing with a message that says “calculator will restart when validation is complete” so it doesn’t seem to be charging. It’s still not turning on and I have no idea what to do, please help. (This calculator doesn’t have a light on the side so I am unable to see if it is charging or what the battery percentage looks like)

⟐ Answer accepted mei 05, 2026 at 5:17 MST

TI-84 Plus CE: How can I fix my flashing screen (TI-84+CE)

Mon, 04 May 2026 16:15:47 -0700

My calculator seems to have decided to no longer likes me, and is having startup issues.

It is stuck on a flickering white screen. I can’t turn it off. It doesn’t seem to be turning off on its own. I’d prefer to not have to completely wait for it to drain considering that I just finished charging it yesterday. The calculator does not seem to fully load at all and does not appear in the TI Connect CE program when plugged in to the computer. This is my personal calculator and I’d really like to have it fully working again, and if possible, salvage the programs I have on it. Is there anything I can do, short of buying a new calculator? Or is there a factory reset feature available anywhere I can use?

⟐ Commented mei 04, 2026 at 16:15 MST

TI-84 Plus CE: Why won't my Ti84 Plus CE turn on?

Mon, 04 May 2026 16:04:07 -0700

My calculator will not turn on despite being at full battery (when it charges it has a green light). The screen does not turn on when I press the on button, instead it stays black. I have even bought a replacement battery online, but this did not seem to help. Before, my calculator would often not turn from time to time, but still turned on occasionally, and it always turned on after a few seconds of charging it, but now it does not.

⟐ Commented mei 04, 2026 at 16:04 MST

TI-84 Plus CE: My Calculator won’t turn on or charge

Mon, 08 Dec 2025 09:20:40 -0700

Hello! My TI-84Plus CE just completely died the other day. We tried to charge it and it shows now signs that it is charging. The screen doesn’t light up or show anything. We tried replacing the battery, and still the calculator shows no signs of turning on.

Is there anything else that we can trouble shoot?

⟐ Answered december 08, 2025 at 9:20 MST

TI-84 Plus CE: My alpha key is no longer Functioning

Mon, 29 Sep 2025 00:46:58 -0700

The alpha key in my Ti-84 plus CE is not working i have looked everywhere on how to fix it i could not find anything about it. I did open it up however i was scared to go any further because it seemed the everything is attached to the front black face piece . I just need a little guidance. (Everything else works great)

⟐ Commented september 29, 2025 at 0:46 MST

TI-84 Plus CE: TI-84 Plus CE My calculator says: Validing OS calculator will restart

Wed, 16 Jul 2025 07:16:06 -0700

My calculator says:

Validing OS

calculator will restart when validation complete. And starts blinking over and over again and I cannot fix it, I tried to charge or reset it and It doesn´t work.

⟐ Commented juli 16, 2025 at 7:16 MST

TI-84 Plus CE: The calculator won’t work

Wed, 16 Jul 2025 06:38:33 -0700

It brand new just got it. I plugged it in and screen turned on but says something and turns off.

⟐ Commented juli 16, 2025 at 6:38 MST

TI-84 Plus CE: How much the replacement usb charging port

Wed, 04 Jun 2025 11:55:17 -0700

Hi, how are you?

My TI-84 Plus CE mini usb charging port was broken.

So how much fix charging port?

⟐ Commented juni 04, 2025 at 11:55 MST

TI-84 Plus CE: TI 84 Plus CE is stuck in the validating loop

Thu, 24 Apr 2025 06:23:31 -0700

Hello,

I am trying to fix the calculator. When plugged in it is stuck in the validating loop. I have attempted to remove the battery, download the TI software, but when I plug it in it through the USB it does not recognize the calculator. There is mention of a button battery that can be replaced but I cannot find that either. Should I purchase a whole new battery? Is that maybe why it will not get out of the validation loop or be recognized?

⟐ Answered april 24, 2025 at 6:23 MST

TI-84 Plus CE: A cap or resistor blew on the mother board.

Mon, 21 Apr 2025 09:26:04 -0700

what size is the so I can replace it, calc still works. Or does anyone know what this one controls or go too?

⟐ Commented april 21, 2025 at 9:26 MST

TI-84 Plus CE: Can the screen be replaced?

Mon, 03 Mar 2025 12:51:55 -0700

if the screen on a TI-84 plus CE is cracked or in some other way damaged, would there be a way to remove and replace it without damaging other parts? or really any way to remove it at all?

⟐ Answered maart 03, 2025 at 12:51 MST

TI-84 Plus CE: Blank Line Artifact Down Center of Display!

Sun, 02 Feb 2025 21:00:59 -0700

Note this only happened after the battery died and was replaced. Fixable?

⟐ Answered februari 02, 2025 at 21:00 MST

TI-84 Plus CE: What voltage is required across the exposed rear charging pads?

Wed, 22 Jan 2025 13:50:32 -0700

Hello,

The back of the calculator has two metal pads that I've seen used in charging stands for 10+ calculators in classrooms. I'd love to make my own and I was wondering if anyone had done any research on how this system works.

Does it work as a LiPo charger where it needs to shut itself off when the battery is above a certain voltage, or is the charge controller embedded in the calculator? Also, more pertaining to the title, does it draw the same 5V that it gets through the USB port or is it something closer to 6V (I saw a TI forum post indicating that the nominal battery voltage was roughly 6V but I haven't actually looked at the battery myself).

Thanks!

⟐ Answered januari 22, 2025 at 13:50 MST