USB problems with GBZ

[boquetipo]

Hi,
I don't know if you solved your problem, but I had the same recently.

Firstly, the are some kind of usb that aren't recognized by the rpi0 but on windows are ok. So, you have to be lucky. I bought a Trust usb hub and that works fine.

And second and more important, I tested everything (wifi dongle, keyboard) and was ok, but when I desolder the usb connectors, I had a really bad time. I thought I broke something. Fortunately, I friend told me to solder every GND point on the usb hub pcb between them. And it works!!! So I have small wires between these points now. I bit weird, but now I'm happy.

[ZeroContext]

Are the D+ and D- wires *exactly* the same length? USB is a differential signal, and won't work properly if the wires aren't the same length.