iFixit - Answers With Device "LEGO"

LEGO: Lego Duplo Cargo Train -10875 | No Sound

Wed, 10 Dec 2025 04:28:15 -0700

I bought a used Lego Duplo Cargo Train -10875 that works, it moves and recognizes the action bricks, but doesn't make sound, neither stand alone, neither with the app.

I already changed the batteries twice and no sound.

I already opened the train to check the contacts and it all looks brand new.

Lego Minifig: How to replace LED torch lights in the feet of Lego Minifigures

Thu, 30 Oct 2025 21:46:18 -0700

I have an old blue Lego man minifigure with torch LED lights in the feet.

Bought in 2013.

The torch has stopped working.

I have replaced the batteries but the torch still does not work.

Q. How to replace (or repair) the LED lights in the minifigure's feet?

Lego Mindstorms NXT brick: Replace broken battery terminals?

Wed, 28 May 2025 15:35:36 -0700

So the batteries leaked, corroded the battery terminals, and a few of the springs broke off. Can I replace just the teminals?

⟐ Commented May 28, 2025 at 15:35 MST

RCX 1.0: How to fix RCX 1.0 I.R. problem?

Wed, 13 Nov 2024 15:43:49 -0700

The LEGO RCX 1.0 powers ON and all built-in programs work well. But when I tried downloading or even communicating with the I.R. Tower, the RCX wont respond! =(

Which component should be replaced or re-soldered? Please anyone... help pls. I just need to know.. which hardware component is at fault... so I can fix it.

Thank you =)

⟐ Commented November 13, 2024 at 15:43 MST

LEGO: How to open a Lego Duplo train?

Thu, 07 Mar 2024 10:26:07 -0700

Hi, I'm trying to fix a Lego Duplo train which works on batteries. The train doesn't ride as smooth and powerful as when we just got it so I thought having a look inside to see if there's some dirt or whatsoever. To open it it has 3 screws underneath the cap for the batteries. Once I removed the screws there is still no way to get the top part from the bottom. It is clicked on it somehow but no way to get it moving (which makes me wonder why they put screws there in the first place, if they have been left out they could save some money on the screws and still no one would be able to open the thing). Please help because I'm about to break something......!!!

⟐ Commented March 07, 2024 at 10:26 MST

Lego Dimensions Starter Pack: Where can I buy a replacement usb cable for the lego toy pad

Wed, 16 Feb 2022 09:11:13 -0700

i can’t seem to find any on goggle any ideas where i can get one?

⟐ Answer deleted February 16, 2022 at 9:11 MST

RCX 1.0: Cannot get the RCX 1.0 to respond to IR remote control

Sun, 17 Mar 2019 12:29:10 -0700

Hi,

I have just got my son’s old RCX 1.0 out for my grandson and purchased a Lego (9738) IR remote control so he can control the RCX unit.

The RCX unit works OK and all the built in programs work OK but it does not respond to the remote control commands at all.

Firstly can somebody confirm wether the RCX 1.0 does work with the IR remote control and if so any idea how to get it working again?

RCX 1.0: power requirement for an RCX controller

Tue, 26 Dec 2017 11:53:28 -0700

what is the maximum current required by an RCX1.0