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#1  

It doesn't look like you completed any of the training from the Learn Section. I would make sure you completed all the training, make sure your servos are calibrated per the tutorials.

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#2  

its 100% one of these regarding walking...

  1. your leg servos are not connected correctly. You can verify by reviewing the assembly guide

  2. your leg servos are reversed. You can verify by reviewing the assembly guide

  3. you have not created a servo profile. You can verify by reading the servo profile step in jd's usage guide under the LEARN section.

As for freezing, it's one of these

  1. ezb comes lose when jd falls over or a wire is too short and pulls the ezb out, which disconnects power

  2. rgb led eyes are not plugged in securely to ezb

  3. servos are connected incorrectly and shorting out, causing the ezb to reboot. This could result in a fire (check terms of use). Verify wiring is correct and the servos are not making contact with each other and/or moving past their limits.