Questions tagged [repair]

Bricks, pieces and other elements sometimes break, deform, stop working, or get otherwise damaged - perhaps we can help you fix them?

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21 votes
1 answer

NXT screen either flickering or blank, what do I do?

The screen on my LEGO MINDSTORMS NXT brick has just stopped working. It is either flickering, or blank. I have tried turning it on and off, installed fresh batteries, and I can even hear the selection ...
HaydenStudios's user avatar
32 votes
2 answers

How do you repair yellowed or faded LEGO blocks?

In particular, I've had white blocks that have yellowed in places. Can the colour consistency be restored? Or at least improved? I'd be more interested in people's actual experiences rather than ...
Umber Ferrule's user avatar
8 votes
3 answers

EV3 screen stuck at "Starting..."

After I turn the device on, its screen is stuck at "starting..." for a long time. It hasn't change into the regular screen, and the light behind the button was still red (didn't become green). Is ...
POPPY's user avatar
  • 83
7 votes
2 answers

How can I get my NXT to turn on - all it does is softly click?

Recently when I plugged my NXT brick into my PC I clicked on the wrong option and now all it does is clicks when I turn it on? How do I get it back to a usable state?
Zhaph - Ben Duguid's user avatar
21 votes
5 answers

Repairing Lego minifigure torso cracks/damage

I have a ton of Lego minifigures that I really put through their paces throughout my childhood (fighting pirates, exploring space... basic stuff really). A number of them are damaged on the torso. ...
mj_'s user avatar
  • 1,119
16 votes
3 answers

How to disassemble LEGO train engine base part# 28743?

I have one of the new Bluetooth engines (part 28743, but in the bottom it says Hub No 5 model) that has started to under-perform and make some noises, I think that it need some maintenance (maybe due ...
Jade's user avatar
  • 375
15 votes
4 answers

Can I repair a broken LEGO brick with glue?

I have a dump truck hinge piece that snapped in half when it got bent backwards too hard. Is there a type of glue that would be appropriate to repair the piece? Would superglue be a good choice? ...
Jessica Brown's user avatar
14 votes
6 answers

Minifigure Hand broken and stuck in arm

A friend of mine gave me some of his old minifigures. As you guys can see, the hand of one of the figures is broken and a part of the hand is stuck in the arm. Do you have any ideas how to remove the ...
Lukas B's user avatar
  • 141
3 votes
1 answer

Lego Mindstorms EV3 broken screen cable

While taking apart my EV3 brick I accidently pulled on the ribbon cable connecting the screen to the motherboard too hard and it broke. I figured I could just get a replacement fpc ribbon cable with ...
dkapur17's user avatar
  • 131
1 vote
1 answer

Minifigure Torso Cracks

So I recently picked up the new Star Wars AT-AP and I was quite please with what I got, but after not even a week The awesome Commander Gree Figure had a torso crack that went from the bottom of the ...
General Solo's user avatar
16 votes
4 answers

How can I fix a flattened gear?

I have an old small gear that somehow got flattened to an oval shape. The axle hole is too narrow to slide a bar through, although it is not completely closed shut. How can I repair this gear?
Pubby's user avatar
  • 5,216
15 votes
1 answer

How to repair leaky pneumatics?

Some of my pneumatics parts, mostly pistons, have seals which no longer prevent the air from escaping completely. On some parts they are unreliable and on others they are not working at all. Why do ...
Sebastian Wahl's user avatar
7 votes
2 answers

How to repair cracked/peeling decals?

Does anyone have any ideas on how to repair and protect cracked/peeling decals, like these pictured in my 10019 set: Some kind of film or lacquer?
autenil's user avatar
  • 71
2 votes
2 answers

Fixing a not working Power Functions L motor

Four of my PF L motors don't work. How could I make them work again? I didn't find any information about L motors, only M and XL.
Aistis Ciutas's user avatar
1 vote
1 answer

Calibration Freeze on D11

I've read through similar posts, but haven't seen exactly the same issue. Built it once, and froze during several calibration attempts. Stripped it all down, rebuilt it very carefully and still have ...
Ozzy's user avatar
  • 11