if youre on windows, and using the proper fastboot method of cwm installation, im going to guarantee you its a driver issue. you can use superrs bootable linux disk or use my guide to fixing the drivers, keep in mind if the phone is ON its not in fastboot mode... fastboot mode is the phone stuck on the green android guy you see when booting the phone up, if you run my C++ tool, try the fastboot thing, itll probably error out but put you into fastboot aka bootloader mode, you can then and ONLY then fix the drivers manually. you CANNOT fix fastboot drivers while not plugged into the computer and in fastboot mode. i do not have the internet connection speeds to be able to do a teamviewer and honestly i probably wouldnt anyway, kuz no offence but if i did it for you id have to do it for everyone and dont nobody got time for that