iFixit - Active Questions With Device "Calculator"

Casio FX-991ES Plus: My calculator is not turning on

Mon, 27 Apr 2026 14:31:31 -0700

How can i fix it

⟐ Commented abril 27, 2026 at 14:31 GMT-7

Texas Instruments TI-30X IIS: Automatically adds a digit to the end of my entry

Wed, 22 Apr 2026 13:20:25 -0700

My calculator automatically adds a 9 to my last number every time I try to do math. For example, I type 5 + 6 and expect =11, but calculator does 5 + 69 and I get =74 :(

The 9 button does not appear to be sticky.

⟐ Commented abril 22, 2026 at 13:20 GMT-7

Casio fx-580VNX: Calculator has a malfunctioning button

Fri, 17 Apr 2026 03:40:29 -0700

What's wrong with my Casio calculator? I was using it for normal calculations when I noticed about 5-6 buttons stopped working. Is there any way to fix this?

Casio fx-82ES: How to change display

Thu, 16 Apr 2026 01:29:25 -0700

How to change display

⟐ Answered abril 16, 2026 at 1:29 GMT-7

Casio FX-991EX: Calculator is in 'PAUSE' mode

Tue, 14 Apr 2026 23:17:51 -0700

The calculation was done in VECTOR mode from the menu. When trying to do something, the calculator hangs, after clearing by the 'ON' button, you can see this status of MENU. Apart from these 3 modes, no other mode is showing, if I want to scroll up or down, the pause sign (2nd picture) is coming on the upper right side.

⁉️ How to get back all mods like before?

⟐ Commented abril 14, 2026 at 23:17 GMT-7

Texas Instruments TI-30 XS Multiview: Calculator turns off while typing and won't turn on unless I reset

Thu, 09 Apr 2026 14:34:27 -0700

The device turns off while typing and won't turn on unless I reset, clearing out the work. It still calculates after I try a few times but I lose a lot of time typing it in over and over again.

⟐ Answered abril 09, 2026 at 14:34 GMT-7

Casio fx-82ES: How to write A to Z alpabats in casio fx-82es plus

Tue, 07 Apr 2026 05:25:28 -0700

How to write English lettes in fx-82es plus

⟐ Answered abril 07, 2026 at 5:25 GMT-7

Casio fx-CP400: Touch screen not responding, and when it does it presses wrong things

Fri, 03 Apr 2026 04:40:45 -0700

Touch screen will not work but the little times it does it just presses a button on the opposite side of the screen. Screen has no cracks or scratches. Never been dropped hard or anything. Resetting the calculator does not fix it and now i can't use the calculator since i am stuck in the language option screen. Please help and thank you!

⟐ Answer edited abril 03, 2026 at 4:40 GMT-7

Casio FX-991ES Plus: Not working. No display. Better also changed. what should I do?

Mon, 23 Mar 2026 03:47:59 -0700

My Casio fx991 es plus calc not working what should I do? No display battery also changed. Advise me please.

⟐ Answered marzo 23, 2026 at 3:47 GMT-7

Sharp EL-1197P calculator: Calculator stuck in "On" Position

Fri, 20 Mar 2026 03:38:55 -0700

I took apart a Sharp EL-1197P calculator and cleaned contacts with 91% isopropyl alcohol. When I reassembled it and plugged it back in the power switch was set to off but still turned on. I flipped it back and forth still nothing. Please help!

⟐ Commented marzo 20, 2026 at 3:38 GMT-7

Casio fx-82ES: Why does my calculator not turn on when I press the on button

Thu, 19 Mar 2026 21:24:41 -0700

Why does my calculator not turn on when I press the on button

⟐ Commented marzo 19, 2026 at 21:24 GMT-7

Texas Instruments TI-83: Why TI-83 wont turn on

Thu, 26 Feb 2026 06:46:07 -0700

Hi.

I'm having a problem with my TI-83, it doesnt turn on.

I have replace the batteries, the 4 AAA and the

backup one, and followed all the hints supplyed in TI,

troubleshouting section.

It still doesn turn on.

What can I do?

⟐ Commented febrero 26, 2026 at 6:46 GMT-7

Other Brand Calculator: Check button is not work

Fri, 20 Feb 2026 21:49:35 -0700

Check button is not working

⟐ Commented febrero 20, 2026 at 21:49 GMT-7

CASIO fx-82AU PLUS II NNATURAL-V.P.A.M.: Why is my 0 not working?

Fri, 20 Feb 2026 09:54:29 -0700

Why is my 0 not working?

TI-89 Titanium: screen ends up freezing after I use it for a while

Wed, 11 Feb 2026 09:27:30 -0700

When I use it for some time, the screen ends up freezing, and the only buttons that work are 2nd, Diamond, Alpha, and copy

Texas Instruments Calculators: ti-86 screen not working

Sat, 24 Jan 2026 02:58:30 -0700

ti-86, when i push the on button, the screen blinks with a bunch of scribble lines on the bottom third of the screen, then nothing

changed all the batteries. dosen't look like there is any damage. prett much looks new.

⟐ Commented enero 24, 2026 at 2:58 GMT-7

TI-84 Plus Silver Edition: Calculator won't turn on

Sat, 17 Jan 2026 20:38:49 -0700

My TI-84 Plus calculator will not turn on. It is one year old, and seems like new, but won’t turn on. Any suggestions? I can’t find a reset button on it.

⟐ Commented enero 17, 2026 at 20:38 GMT-7

Calculator: Why does my calculator round up to on decimal place?

Wed, 14 Jan 2026 04:14:49 -0700

My calculator has recently started rounding every number to one decimal place, whilst it used to come up with many digits because I need them for school. Even if I type a simple calculation such as 1 + 1 the answer comes up as 2.0 instead of just 2 like it used to

⟐ Answered enero 14, 2026 at 4:14 GMT-7

Texas Instruments Calculators: Why does my TI-5660 duplicate entry

Tue, 06 Jan 2026 13:03:51 -0700

Does anyone else have the same issue where it seems the keys are extra sensitive and are duplicating my entry? I love this calculator but cannot continue using it as the duplicate entry are causing such a headache.

⟐ Commented enero 06, 2026 at 13:03 GMT-7

Casio fx-82ES: Porque mi calculadora no prende

Sat, 03 Jan 2026 10:18:07 -0700

No enciende,se oprime on y no funciona

⟐ Commented enero 03, 2026 at 10:18 GMT-7