I have a BFL SC 25GH miner and in 4.9.1 when cgminer starts it states that there were no USB devices detected. Yet, when I run 4.9.0, the miner is detected and works fine. Is this a known issue with 4.9.1 or is there something that I may be missing?
Thanks!
Are you running Windoze or Linux?
If Windoze search back in a few pages and find the new cgminer.exe for 4.9.1 and try it. Don't know if it will make a difference for you or not but that got my Monarchs working.
Sam