It works with bitmain antminer U3?

What does this mean?

"No valid hashes for over 1 sec. attempting to to restart"
 "attempted reset got err: <0> LIBUSB_SUCCESS"

Hy, I just bought Bitmain Antminer U3 , but I need to know the command string to be included in cgminer for to do work in solo...


 
-Windows 7 :                   OS

- Cgminer 4.8.0 :             software

- Bitmain Antminer U3:     miner

- Electrum :                    wallet

Hy I need to know how to configure cgminer  for miner solo


windows 7 - OS
cgminer 4.8.0 - software
bitmain antminer u3 - miner / worker
Electrum wallett  - wallet
Electrum ltc  - wallet (for litecoin)



I recommend you do practical examples
thanks
(italian user)