I just received 2 Gridseed 5-chip miners and I've been trying like hell for the last 3 hours to get them working without luck.
I'm using Windows 7 as my controller and I'm mining at clevermining
I ran Zadig, installed the WinUSB driver, and tried the CGMiner 3.7.2 Gridseed fork and kept getting "failed to initialize..."
I uninstalled the drivers, re-installed the devices, kept the STM32 Virtual COM port driver, and tried BFGMiner 4.0 and it didn't recognize any devices.
I tried one of the newer CPUminer forks and I never got any "YAY!" messages.
For the love of God can somebody please help me get these things running!!
You should try this:
https://github.com/siklon/cpuminer-gc3355 you can find windows binary at the bottom of the page.