iFixit - Answers With Device "Canon EOS Rebel T3i"

Canon EOS Rebel T3i: Why won't my device turn on?

Sat, 11 Mar 2023 20:48:47 -0700

My device is currently turned off, and no matter what I do it will not turn on. How can I fix this?

⟐ Answer edited March 11, 2023 at 20:48 MST

Canon EOS Rebel T3i: Eyepiece is not working.

Fri, 25 Mar 2016 15:25:19 -0700

One of the lens components inside the eyepiece is out of place after a bump. Can it be fixed or must the eyepiece be replaced?

⟐ Answered March 25, 2016 at 15:25 MST

Canon EOS Rebel T3i: Replacing internal backup battery of Canon EOS Rebel T3i camera

Mon, 04 May 2026 02:09:53 -0700

I am trying to change internal backup-batter of my Canon EOS Rebel T3i Digital SLR Camera. As of now I cant believe that there is no documentation or any information available on internet. I am looking forward to do this thing myself.

⟐ Commented May 04, 2026 at 2:09 MST

Canon EOS Rebel T3i: How to get access to fix the optical view finder lens?

Tue, 21 Jan 2025 07:13:42 -0700

Hello,

My optical view finder lens has become dislodged (It moves when I jiggle the camera).

I'm not sure how it happened, but I reckon someone dropped the camera.

The rest of the camera works fine (all buttons, screen, autofocus, etc...), I just have to use the screen to take pictures, and it is not very practical (super slow focusing).

Even though I am comfortable with following this guide, I'd like to be sure it will give me access to the lens area, as opening up devices like these (even for professionals) involves some risks.

I can't quite tell what is accessible from the images.

Thanks for confirming this,

UPDATE: This is actually similar to the question @jlaurent asked here: Eyepiece is not working.

⟐ Commented January 21, 2025 at 7:13 MST

Canon EOS Rebel T3i: error message "card's write protect switch is set to lock"

Sun, 22 May 2022 03:14:46 -0700

when turning on the camera with memory card inserted, i got this message

"card's write protect switch is set to lock" although the card is not lock, tried different card and samething. when i took the card out, it reconized there’s no card and reinsert again, the message come out.

cant take no with push on the shutter button

⟐ Commented May 22, 2022 at 3:14 MST

Canon EOS Rebel T3i: says no card in camera

Sun, 18 Aug 2024 22:58:28 -0700

I have tried newSD cards and the all work in thecomputer and another cannon but not in the T3i

⟐ Commented August 18, 2024 at 22:58 MST

Canon EOS Rebel T3i: Screen Black but Camera Still Shoots-Help!

Fri, 20 Dec 2024 01:44:18 -0700

One day my Cannon Rebel T3i was working great! The next day, the screen went black yet the camera still took pictures that I was able to download. I am unable to replay pics or view which setting I am in on the screen. The menu or info buttons are not working either. I have tried several troubleshooting ideas from the display button, removing and recharging the battery, replacing the SD card, to pushing the info button several times to reset the screen yet nothing seems to work. Any other suggestions would be greatly appreciated! Thanks!!!!!!

⟐ Commented December 20, 2024 at 1:44 MST

Canon EOS Rebel T3i: Camera won't turn on

Mon, 12 Aug 2019 12:27:46 -0700

I was using my canon 600d camera and suddenly it just died, I mean turned off by itself.. I presumed it was the battery so I fully charged it. Unfortunatley it is still not turning on. Any solutions for this?Thank you.

⟐ Commented August 12, 2019 at 12:27 MST

Canon EOS Rebel T3i: SD card slot does not work

Mon, 20 Apr 2026 11:52:15 -0700

My SD card slot does not work anymore and I bought a new SD PCB assembly for it. (http://uscamera.com/cg2-3308.htm) Do you have a guide on how I could replace this? I could probably figure out how to do it myself, but it would make me feel better to have instructions

⟐ Commented April 20, 2026 at 11:52 MST

Canon EOS Rebel T3i: How do I fix the spring for the SD card?

Wed, 04 Nov 2015 17:03:40 -0700

I have to fish the SD card out of the SD slot. I am afraid that one day it will get stuck.

⟐ Edited November 04, 2015 at 17:03 MST

Canon EOS Rebel T3i: Flash lens burned out, how do I fix it?

Fri, 17 Jan 2020 07:47:47 -0700

The built in flash rises up but the light does not turn on.

⟐ Commented January 17, 2020 at 7:47 MST

Canon EOS Rebel T3i: Viewfinder Blurry, Images Sharp

Tue, 28 Mar 2017 00:59:15 -0700

Hi everyone! My Canon t3i's viewfinder is super blurry. I've tried adjusting the diopter and that's not the problem it seems. When I look into the diopter from 4+ inches away I see a black rectangle that looks to have fallen out of place. As I place my eye to the optical viewfinder, I no longer see the rectangle but it's totally blurry and nothing is in focus.

My images are still great but I'm unable to use my viewfinder to take photos which is a bit of a pain, since I can't effectively manually focus. A photographer friend of mine mentioned that it looks as though the "seal" has come undone and told me that the object is the reason for the blurriness.

any advice as to how to open my camera to find and fix whatever object is in the way?

⟐ Commented March 28, 2017 at 0:59 MST

Canon EOS Rebel T3i: remplacer la carte dc/dc eos 600d

Fri, 13 Jan 2017 01:52:31 -0700

comment demonter le boiteir porte batterie et la carte dc/dc

Online translation.

Replace dc / dc eos 600d

How to disassemble the battery holder and the dc / dc card

⟐ Edited January 13, 2017 at 1:52 MST

Canon EOS Rebel T3i: My LCD screen won't come on.

Sun, 07 Feb 2021 20:52:35 -0700

I works on video. I works when holding focus photo button halfway down. I'm fairly sure it's the LCD sensor/ eye piece. I think it's registering my face up to it all the time. I've tried all other troubleshooting suggestions.

⟐ Answered February 07, 2021 at 20:52 MST

Canon EOS Rebel T3i: The values of the capacitor on main board

Mon, 01 Jul 2024 08:27:28 -0700

I have a faulty capacitor on the board and not sure of it's value it's the one far right near an IC and looks to be in line with the back panel LCD ribbon

⟐ Commented July 01, 2024 at 8:27 MST

Canon EOS Rebel T3i: Why wont my built in flash won't work.

Thu, 17 Jun 2021 15:40:04 -0700

Error 5, turn power off and on. Just makes clicking noise and will not open.

⟐ Commented June 17, 2021 at 15:40 MST

Canon EOS Rebel T3i: Saving pictures to SD card

Fri, 17 Apr 2020 07:06:02 -0700

Will only save pictures when using eyepiece, not with screen open

⟐ Commented April 17, 2020 at 7:06 MST

Canon EOS Rebel T3i: LCD SCREEN stopped suddenly after hit a splash of sea water

Fri, 29 Nov 2019 10:19:47 -0700

The camera hit a splash of sea water and then appeared on the screen a full blue color and then all the information went gradually then no any thing on lcd screen …. note that the camera is working when I shoot from viewfinder and i replacement LCD to new lcd screen and not solved ..!

⟐ Answered November 29, 2019 at 10:19 MST

Canon EOS Rebel T3i: Error code 20 appears when I turn on rebel t3i

Sun, 07 Jul 2019 09:56:57 -0700

Is there a way to repair error code 20?

⟐ Answer edited July 07, 2019 at 9:56 MST

Canon EOS Rebel T3i: I have a totally stripped screw on the body that won't come out

Tue, 18 Sep 2018 19:32:27 -0700

Trying to self-repair my busted T3i SD card port but one of the screws that is right under the battery door of the camera is completely stripped so I can't get inside of the camera. Its deep in the hole so I can't use any sort of dremel, plus the rubber band/super glue trick was not successful. The screw is very small and the strip has become a complete circle. Any help would appreciated! Thanks!

⟐ Answer accepted September 18, 2018 at 19:32 MST