[video=youtube;F5_LnslAUtM]https://www.youtube.com/watch?v=F5_LnslAUtM&feature=youtu.be[/video]
Booting your M8 into fastboot mode can be tricky at first. The video above shows you exactly how to do this very necessary task. You will need to know how to get into fastboot on your device if you are interested at all in applying S-Off, or any number of other things like flashing a custom recovery.
