I want to set up adb to work over usb with my MyTouch 4g. unfortunately, I am a total newb as far as android dev goes, so I really don't know what to ask. I have installed the sdk and the google usb driver but adb devices returns no devices. usb debugging is turned on on my phone. My ultimate goal is to downgrade from Gingerbread back to Froyo so I can root.
Thanks
My problem was solved by Darwind in the comments:
The Google USB drivers doesn't always work - get the HTC Sync which has USB drivers as well and install the full package. This should hopefully fix your problem - of course this is only for Windows