Reply To: USB flash drive not showing up Home › Forums › RetroPie Project › New to RetroPie? Start Here! › USB flash drive not showing up › Reply To: USB flash drive not showing up 02/21/2016 at 04:58 #117653 vinsegaParticipant What guide are you talking about? And how exactly do I add a root delay? Someone mentioned that adding a root delay might help but I have no clue how to do that.