[Q] New motherboard - New USB problem!

I bought a new kindle fire 2 motherboard as I managed to hard brick my old one (long story!).



This new motherboard works perfectly and my kindle fire 2 works just as it should....except.......

When I connect to a PC, I get a "device not recognised" error. When I check under device manager - it is listed under USB controllers as :-

"unrecognised device (Device descriptor failed)"

Now I know I have correct drivers installed as my other kindle fire 2 works perfectly - both in normal ADB mode and fastboot mode.

Wondering if I have bought a duff motherboard? or can this be fixed? Is the USB comms handled directly by the kindle's processor?

I did wonder about the USB socket as I have read about the problems with these, but I had a look at the socket and managed to find a few exposed pads and managed to solder a USB cable to it, but ended up with exactly the same result!



On the one hand I'm very happy to have a working Kindle fire 2 again, but a bit peeved if I cant do anything with it!! (other than use it as a kindle fire of course!)

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