instalate esto y seguro q despues te funciona:
https://www.dropbox.com/s/vr0dk0tegj...-setup-1.2.exe
1. Run it (require administrator privileges)
2. Press y/yes to install adb and fastboot or n/no to skip
3. Press y/yes to install drivers or n/no to skip
4. Continue driver installation
5. 15 seconds passed - finished!
