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I have a Lego Mindstorms NXT 2.0, which worked well for a couple of years. However, after the last few weeks, it seems to not boot up. I took it apart, and noticed it seems to have a different internal design than the other ones. After screwing around with it for a bit, it unexpectedly boot up.

I thought the plastic part holding the ribbon cable in place was putting too much pressure on the cable, causing malfunction. After I reassembled it with less pressure on the screen mount, and sealed the unit back up, it seems to be dead, again.

Any help? I prefer not to solder.

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    Is the NXT not starting up at all (no startup sound, no USB, no screen), or just the screen is not turning on? I ask because ageing NXTs have historically had a lot of problems with screens ceasing to display anything, though the rest of the controller's functionality is not impaired.
    – MindS1
    Jan 2 '20 at 23:50
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    Never mind, it's fixed. Turns out the battery terminal was not properly fitting the new batteries. Jan 2 '20 at 23:56
  • Excellent! Glad to know you figured it out. Lego no longer offers replacement NXTs so the only other course of action would be a third-party reseller such as Ebay or BrickLink.
    – MindS1
    Jan 3 '20 at 0:00
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    @RuhiBatool .. feel free to add the solution as an answer to your own question - maybe others have similar problems...
    – Phil B.
    Jan 3 '20 at 0:09

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