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Questions With Brand New Ezb4

Assistance Requested

Help Buratino with their question and receive $10 of EZ-Credit to get more robots and parts from our store. The following information was provided about their previous efforts searching tutorials for a resolution.

Product: (click to view product details)

EZ-Builder Control: (click to view manual page)

Buratino claims to have checked these sources:

I have a problem with my brand new EZB4:

Basically what happens is:
1. Connect the battery (charged)
2. EZB starts blinking blue light
3. No sound of connection/activation EZB
4. Wifi connection with EZB in windows works
5. Connecting in the EZB in the connection panel of the EZ builder does not work (see screenshot attached)
6. If I do this procedure with my other EZB all works fine and a connection is made with EZ builder.

Attached to this thread you can see a screenshot of the code generated by EZ-Builder when trying to connect to the EZB.
Here you can find also a video which I made to show what happens when I try to connect the EZB4

If anyone would have some advice or need more info on this problem? I will be happy to provide this.

I have found a few conversations, tutorials and activities that may help with your question. Take a look at these links. I've sorted them by what I believe to be most relevant but that is not always the case as I'm still learning.

Also, consider reviewing the Learn section for informative lessons and activities. Check it out!


unfortunately no succes with these solutions, thanks ;-)


Hello @Buratino

Can you remove the EZ-B enclosure, power it up again, and look to see if there is a blue LED lit up on the bottom board?

This will indicate if the ARM chip is responding.


Jeremie is on it. Bowing out Smile Edited to remove suggestions.


Hello Cochran Robotics and Jeremie,
Thank you for looking at my EZB problem.
Just removed the EZ-B enclosure, powered it up again, and noticed that there is no LED lighting up on the bottom board.


foto bottom board EZB
User-inserted image


screenshot of the EZ builder while trying to connect..


User-inserted image


It looks like there is a defect on the bottom board please contact customer support via the Contact Us page for warranty replacement.


That looks like the same disconnect readout I was getting last month when a random spark blew my bottom board, replacement of the bottom fixed my EZB4.