I am at my wits end with this Antminer U2+.
I have tried all kinds of combinations of -S antminer: all, auto, \\COM4, capitol letters, small case letters, with --set device; without it.
I've uninstalled drivers, rebooted, made sure to check the remove all drivers box, reboot after reboot.
Installed the VCP drivers from Silicon Labs, ran the .exe as admin yada yada.
Deleted my .conf, several times.
Deleted BFG Miner 3.10.0 win 32, then un7zip to C\ a fresh copy as admin, etc,etc,etc.
I've run as administrator, installed as administrator.
Opened BFG Miner with CMD Prompt as admin, launched from command line.
All of these steps have been repeated on two separate Windows computers, XP Pro and 7 Pro.
Even CG Miner refuses to work with this Antminer U2. But with a different message "USB init, open device failed, err -3, you don't have privilege to access -AMU device 2:1"
Now I only mention that because its the only line of any output that has reflected AMU.
And yes,I have properly removed Zadig from that computer( XP Pro) and left CG at that.
With VCP driver installed, Windows usually will give some thing like the following thru Device Manager (as admin)-
nit picking the parts that have Silicon Labs or USB to UART type info.
Location Path
PCIROOT(0)#PCI(ID01)#USBROOT(0)#USB(1)
Device Instance Path
USB\VID_10C4&PID_EA60\0001
Bus Reported Device Description
CP2102 USB to UART Bridge Controller
manuf- Silicon Laboratories
Location- Port_#0001.Hub_#0005
USB Root Hub Location- Intel ICH8 Family USB Universal Host Controller-2831 (10%- resources)
Launching Bfg Miner from the cmd line with- bfgminer -d? -D -S antminer:all
I can pick out relevant lines with -
lowlevel_scan: Found vcom device at com:4 (path=\\.\COM4, vid=0000, pid=0000, manuf=(null), prod=(null), serial=(null)
lowlevel_scan: Found usb device at usb:005:e002 (path=(null), vid=10c4, pid=ea60, manuf=(null), prod=(null), serial=(null)
Failed to ioctlin lowl_vcom.c windows_usb_get_string():389: A device attached to the system is not functioning.
FTD2XX.DLL failed to load, not using FTDI auto detect
Icarus Detect: Test Failed at \\.\COM4:get00000000, should:000187a2
Devices detected:
0devices listed
Windows sees that a device is there and lets Silicon Labs drivers install for it and BFG Miner sees that something is in the usb port but I'm not seeing things that I expected like manuf=(siliconlabs) prod=(USBtoUART)or(CP2102) serial=(
??)
What's relevant? What's missing?
[ Update- One confirmed defective Antminer U2+, after receiving a replacement, the Antminer U 2+ starts in the command line just like the Antminer U1.]