I have tried cgminer with this string:

cgminer.exe -o stratum.btcguild.com:3333 -u dogie_U3 -p 123


result: No devices detected!

Same problem with the new U3 i got.


No one of my two purchased U3 was sealed originaly with the round adhesive dot. I can see remains of this Dot ( adhesive on the first Box and a half Dot on the second Box).
To seal the box for the new buyer they have used a narrow adhesive tape.
So i'm not the only one with this U3 problem.
Probably the U3 i've got from Amazon.de have done at least two rounds (Amazon > purchaser > Amazon > purchaser > now from me back to Amazon).

General problem with the U3 or just my problem becaue got no originaly sealed unit?

My Laptop has 3 USB Ports.

No other Miner connected!!!
I have tried other Computers!!!  ( Driver shows up, cgminer: no devices detected )
( i'm wiriting this just because you think i'm stupid and do all wrong )

Even on Ports where the U3 never was connected zdiag 2.1.1 shows:

cp2102 USB to ....

Driver WinUSB (v6.1.7600.16385) --> Driver WinUSB (v6.1.7600.16385)

                                                   Reinstall Driver

I HAVE REINSTALLED THE DRIVER!!!

cgminer 4.9.1 --benchmark still No devices detected!


EAT THIS! 

WTF?
I have reinstalled the WinUSB Driver V6.1.7600.16385 with Zdiag Version 2.1.1 Build 674!
Months before this i have installed and used WinUSB Driver from Zdiag Version 2.1.0 for my
Antminer U2 and the Rockminer RBoxes!!!
The Antminer U2 and the Rockminer are using the WinUSB Driver V6.1.7600.16385 without problems!!!
If i plug in the USB from Antminer U3 my Windows 7 64bit will install the same WinUSB Driver as for my Antminer U2 or Rockminer Rboxes.

Antminer U2 / Rockminer R-Box and Antminer U3 are using the same WinUSB Driver.

DO NOT TELL ME ANOTHER TIME I HAVE TO INSTALL WinUSB Driver!!!
The Driver is installed and working fine with my other Miners!

Cgminer 0.4.9.1 don't recognize the Antminer U3.

 

I think nobody has read my post carefully.

Rockminer R-Box / New-RBox and a Antminer U2 are using the same driver and are running without problems.

1. Power up Antminer U3
2. Connecting USB to Antminer U3
3. CP2102 USB to .... show up in Device-Manager
4. starting cgminer 0.4.9.1 with --benchmark parameter
5. No Device detected / Waiting for USB hotplug device or press q to quit / Pool 0 not .....
6. waiting 3 minutes > nothing
7. Plug Rockminer New R-Box into USB and after a few seconds the New R-Box will beginn to hash


Antminer U3 DOA or what is my mistake?

THX!

Hi!

I have received my U3 yesterday.

Unfortunatly the U3 will not work.

1. Plug in Power
2. Plug in USB
3. Device is recognized and installs CP2102 Driver

Starting cgminer --benchmark ( Ver. 0.4.9.1 ) No Device found
Starting cgminer --benchmark ( Ver. 0.4.6.1 from bitmain HP) No Device found

Replacing U3 with a R-Box or New RBox and there are no problems, cgminer is hashing


Is my Bitmain U3 DOA?

The DICE is a very interesting Miner for Office use.

I would buy two or more DICE if i could use an native cgminer version.

I'm using several R-Box , New R-Box and Antminer U3 and don't want to use two or more forks of cgminer.

If you want to sell more Miners let the native fork of cgminer support all your Miners!