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 sounds. Additionally, it responds regularly when I connect it to my computer. I've had my NXT for three-and-a-half years, so it's not new. Is there an easy/feasible way to fix it, or a cheap way to get it replaced?
Yes there is a way to get it repaired easily. This also happened to my NXT too so what I would do is go on to this page on the Mindstorms website
And then go to NXT then go download the NXT software to the NXT.
Here are the two easiest options:
1: Repair it. If you have a soldering kit, then get it out, and follow the instructions in this video. It worked for me the first try.
2: Replace it. Contact LEGO, and tell them of your problem. I've hear many success stories from people who did this, and LEGO replacing it for free. For one person, it took a week to arrive, but for another, three days. Note that if you want to keep your old NXT, you'll have to have the receipt. If you don't have the receipt, then you'll have to send them your deffective NXT. Also, if you did not buy your NXT directly from LEGO, (i.e. Ebay) they will not replace it for free, but rather ask that you pay them to repair it.