NXT Brick problems. How to fix them?

[m2fel]

I had the idea of building something with the good old NXTs. My attempt to get my four NXT bricks up and running ended in disappointment.

Two of my NXT four bricks are completely broken, and the display on the other two no longer works :( One of them had the “click of death,” but I was able to fix the problem by updating the software on the brick (I had to dig out an old laptop that still ran Win XP to do this).

I did some research on the internet and finally decided to open the brick. The displays on the two bricks that still work flicker or even work perfectly when you apply the right amount of pressure to the display connector, but I couldn't get the display to work when I reassembled the brick. There was nothing obviously broken on the circuit boards of the two defective bricks. No damaged capacitors or oxidation on the top. I didn't desolder the circuit boards from the case to see if there were any visible problems on the other side of the board.

Is there any advice on what to look for or how to repair them?

[chip1e]

Hi I fixed the display on mine. A quick flash over the back of the conector cable with a soldering iron, it re-melts the conductive glue that is used to conect the cable to the board. I held the iron on just enough to curl up the protective tape. Lots of other methods have been used on the forum do a search for fixing display problems. I do hope you can fix them.