Troubleshooting - LEGO Mindstorms User Manual

USEFUL INFORMATION

TROUBLESHOOTING

Updating the firmware in the NXT from your computer
Go to Tools > Update NXT Firmware.
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Resetting the NXT
If the running icon stops spinning, your NXT has frozen
and you will need to reset it. Follow these steps to reset your NXT:
1. Make sure that your NXT is turned on.
2. Push the reset button that is located on the back of
your NXT in the LEGO® Technic hole in the upper left
corner. Use, for example, an unfolded paperclip to press
the button.
Note! If you press the reset button for more than 4 sec-
onds you will need to update the firmware [see below].
1. Make sure that your NXT is turned on and has fresh
batteries.
Note! If you have just reset your NXT (see above) the
display will be blank. A ticking sound will tell whether
it is turned on or not.
2. Make sure that your NXT and computer are con-
nected with the USB cable.
3. Go to the Tools pull-down menu in the software's
menu bar and select Update NXT Firmware.
4. Chose the firmware that came with the NXT soft-
ware or browse to newer firmware downloaded from
the LEGO website.
5. Click Download
6. When all three progress bars are green the
firmware update is complete