iFixit - Answers With Device "Nikon D3100"

Nikon D3100: Why can't my flash be closed?

Wed, 12 Nov 2025 05:37:22 -0700

Hello, sorry if the topic is the same as Hany AlBaghdady. so my camera flash can't be closed, but the flash hook is not broken. what's broken? is it the spring?. Thank you

Nikon D3100: Cámara does not turn on.?

Sun, 20 Jul 2025 01:05:35 -0700

Charging battery at full but cámara does not turn on

⟐ Answered July 20, 2025 at 1:05 MST

Nikon D3100: My shutter screen doesn't go fully up

Fri, 20 Jun 2025 00:51:11 -0700

Just one day all of a sudden, my camera has a dark spot at the top of all of my pictures i thought it was just dirty or something on my lens

But i checked it and it was all clean

Nikon D3100: Why can't I close the pop up flash?

Sun, 22 Sep 2024 13:50:09 -0700

my pop up flash would not close, even though their are no broken elements what so ever within the camera or the flash system

⟐ Answered September 22, 2024 at 13:50 MST

Nikon D3100: Why my camra showing shutter button error

Sun, 21 Apr 2024 01:47:21 -0700

When I click any picture my camera shows shutter button error

Nikon D3100: Memory slot not working

Thu, 02 Nov 2023 18:14:50 -0700

When inserting Memory card it is not supported and memory also doesn't auto stuck in card slot.

⟐ Commented November 02, 2023 at 18:14 MST

Nikon D3100: Button depresses but doesn't snap a picture

Sun, 10 Sep 2023 23:10:08 -0700

Lens cover off. Power on. Press button, nothing happens

⟐ Commented September 10, 2023 at 23:10 MST

Nikon D3100: Why is the battery door not staying closed?

Tue, 16 May 2023 12:16:06 -0700

the battery door is not staying sealed. can you help me?

⟐ Answered May 16, 2023 at 12:16 MST

Nikon D3100: Will not accept memory card

Fri, 24 Mar 2023 15:47:22 -0700

Camera says: this memory card can not be used. Card may be damaged to all cards inserted.

⟐ Answered March 24, 2023 at 15:47 MST

Nikon D3100: Why does it say self timer shooting mode when it’s not in that mode?

Fri, 10 Feb 2023 11:23:24 -0700

Why does it say self timer mode on the screen and beep, it’s not in self timer mode, it’s in auto ?

Nikon D3100: Camera taking black pictures

Mon, 28 Dec 2020 09:50:22 -0700

I dropped my D3100 camera off our counter top. Now when I take a picture it is black. LCD screen is displaying fine. When I download the pictures they are black as well. Some say to see if shutter is moving but it will not let me do that when lenses is off. Previous pictures show up on the camera fine it is just new pictures taking come out black. If I use screen view it shows up black with a slight amt of res showing.

⟐ Answered December 28, 2020 at 9:50 MST

Nikon D3100: D3100 dropped and prognosis is damaged CCD sensor

Tue, 04 Aug 2020 07:35:34 -0700

I dropped Nikon D3100. No damage visible on the body or lens. Images are 80% black. I can see images in playback LCD screen. I’ve determined the lens is not the problem.

A little research indicates it maybe a CCD sensor. Is it repairable?

⟐ Answered August 04, 2020 at 7:35 MST

Nikon D3100: Bad LCD backlight or motherboard?

Fri, 17 Apr 2020 02:19:53 -0700

I dropped my Nikon D3100 and broke the lens, cracked the outer LCD glass and killed a few pixels of the LCD screen. I've been trying to slowly repair it (mostly because of the sentimental value of the camera).

I ordered a replacement outside glass from China but when I replaced it the backlight on the existing LCD screen stopped working. The screen itself seemed to work OK (by shining a light into it), but the backlight was dead.

Thinking that I probably had to replace the screen given the dead pixels I ordered a replacement screen with backlight, but once again the backlight's not working. I've used a multimeter and the voltage going into the LED array is 9V, so there doesn't appear to be anything broken in the circuit, but no idea if this is enough voltage. By shining a light on the screen I've managed to reset the camera and increase the screen brightness but to no avail.

I've seen comments that sometimes these replacement screens come with faulty backlights, but I’m not sure if the fault is with the backlight or maybe the motherboard.

⟐ Edited by author April 17, 2020 at 2:19 MST

Nikon D3100: The screen on back of camera is either totally black or somewhat dark

Wed, 16 Oct 2019 04:58:38 -0700

when i take a photo, the screen on back of camera is either totally black or somewhat darker, or top 3/4 is black or almost black. This happens on these settings - portrait, children, M, S. Lens covers were taken off. I took the battery out for about a day - no result. I went to the menu, to the setup menu, , then mirror lock-up. Still no result.

⟐ Commented October 16, 2019 at 4:58 MST

Nikon D3100: When I take a picture it is black

Wed, 16 Oct 2019 04:53:51 -0700

When I take a picture it is black. If you turn on the screen shot it is also black.

I have the same problem.

⟐ Answer deleted October 16, 2019 at 4:53 MST

Nikon D3100: Nikon D3100 Flash Light repair

Sun, 07 Oct 2018 07:20:00 -0700

Hi Team,

How can i repair the flash flight, It’s like a clip, can i re-attach myself?

Nikon D3100: Error Message "Press Shutter Release Button Again"

Fri, 27 Apr 2018 10:17:29 -0700

Sounds like it's trying to take a picture but the shutter won't fire. Just a small click and the message "Error Press Shutter Release Button Again"

Nikon D3100: Why is show black screen

Mon, 23 Apr 2018 16:05:44 -0700

when i open camera i can take pic but ic ant say i think screen is brake

⟐ Answered April 23, 2018 at 16:05 MST

Nikon D3100: My display screen glass is cracked. The display still works

Sat, 23 Sep 2017 16:00:56 -0700

The glass display screen is cracked from strapping it on a bike mount improperly. The display is fine and view-able. I would like to replace the glass. Is there a fix for this?

⟐ Answered September 23, 2017 at 16:00 MST

Nikon D3100: I dropped my camera, now what I see in viewfinder is dark/pics blk

Wed, 23 Aug 2017 01:33:42 -0700

So the camera didn't take a hard bounce, and nothing seems loose when I shake it, but when I look through the viewfinder the image is very dark, but I can still see it. Flash works, shutter works, but nothing but black comes out, on either the view finder or computer when I try to download. It's the same, regardless of which lens I use.

HELP, PLEASE!!!

ps - same thing happens using both lenses.......

⟐ Commented August 23, 2017 at 1:33 MST