Will my External HDD work on my galaxy s4 via OTG cable.. i hav connected a usb mouse to the phone and it works fine but I'm skeptical about a hard drive, as it requires more power to turn ON etc... will it damage my phone , or will it corrupt my HDD if such a connection to the phone is done so? also in which format should the hard drive be? Ex-fat or NTFS... 🙂