fastboot not working Hey i just wanna ask about.. What to do if i typed in cmd where i have my fastboot.exe ,,fastboot devices'' And it didnt type anything.. No (waiting for device) no error... Just nothing.. thx for help. (im using xperia m) and i did install adb turn on usb debugging turn off my mobile, then hold volume up button and connected the usb.. The light on my mobile i blue like it has to be but it just not typing anything... Again thx for help.
Have you installed Google USB Driver? Try reconnecting your phone then.

Make sure you are following every step of this guide, especially:


making backup of IMEI and DRM keys
running fastboot.exe -i 0x0fce getvar version command