Crazyradio PA Rev B not working

[dorofino]

I just purchase a the new Crazyflie 2.0 together with the Crazyradio PA Rev B, and my Crazyradio PA is not working.

I have the previews version of the Crazyradio Rev.D and is working fine with my new Crazyflie 2.0 PA Rev B

When i plug it on my windows 7 USB port, windows is not detecting anything, not even in device manager.

I plug it on the same port that my old working Crazyradio Rev.D.

Please advice.

Thanks

[marcus]

Hi,

When you plug in the Crazyradio PA does the green and red LED light up quickly and then go off again?

/Marcus

[dorofino]

Hi MArcus,

No, nothing at all lights up.

I even try it on my Android and nothing..

it like is a brick.

DO

[tobias]

As the LEDs don't go on at all it is probably a powering issue.
Can you have a look for any missing components. I'm thinking the diode D1 might have come off. It is located directly underneath the USB connector. Also look at the soldering of the USB connector for any bad soldering.

[dorofino]

That is correct D1 is off, it does looks like all soldering are right.
please see images.

I will go over the soldering tonight, and see if this time works

As the LEDs don't go on at all it is probably a powering issue.
Can you have a look for any missing components. I'm thinking the diode D1 might have come off. It is located directly underneath the USB connector. Also look at the soldering of the USB connector for any bad soldering.

[tobias]

So we found the issue. Why it is missing is another question...

What you can do is to solder a bridge over the D1 pads. It is safe as long as you don't power it from the expansion header as well. If you don't think you can do it contact seeedstudio to get it fixed/replaced.