I realize a lot of people might have the same problem as I have, but haven't found the answer after searching for many hours. So here's my problem:
windows vista x64
installed android SDK and all related drivers
GN is recognized with correct driver in both fastboot mode and regular "on" mode.
GN is recognized as a device in regular on-mode with 'adb devices'
GN is recognized as a device in fastboot mode with 'fastboot-windows devices'
HOWEVER, when GN is put into fastboot mode, NO devices are found with 'adb devices' even though the icon for 'safely removing hardware' pops up with 'Android ADB Interface', which means the driver is correctly installed.
Someone please help explain why the device is not recognized by 'adb devices' command under fastboot mode even though it's recognized by the computer!
GN is found with 'adb devices' for normal boot, but GN is not found under 'adb devices' for fastboot mode. I have reinstalled the android ADB driver, but still the same problem.
I am stressed out! Please help me