Friday, September 18, 2015

Troubleshooting LEGO Mindstorms EV3

When EV3 brick encounter glitches, what to do?

1. EV3 brick dead after battery change: check battery springs
2. EV3 flashes red briefly then dies: defective battery. Get LEGO Education to replace
3. EV3 brick says "starting", then nothing:
a. remove battery and reinsert
b. hold down center and right buttons till display says "updating"
c. plug brick into computer via USB
d. go to Tools drop down menu and select "Firmware update"
4. EV3 brick stuck during firmware update: ....

Go to What to do when EV3 stops working.


  1. RoboGalaxy offers courses related to robotics technology and robot education . We wish you well in your robotics pursuits and hope you prepare well for the arrival of our robot overlords @

  2. I would add Gyro sensor issues - unplug the sensor cable from the port, wait 3 seconds, replug. Usually does the trick.
    This is a good example to teach about how a real robot is different than a virtual EV3 simulator


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