Here is a new patch for the channel -1 which seems to work still testing. http://www.pastie.org/pastes/8846775 Thanks to http://www.mathyvanhoef.com/2012/09/compat-wireless-injection-patch-for.html How to build https://forums.kali.org/showthread....nel-1-Kali-kernel-3-12-also-on-rt2870-3070usb You will need to rebuild initramfs "rebuild core" You will have to include the firmware into your core or your wifi will fail to load, you would have to replug wifi or reload wifi modules.