ok where to start..im trying to update my sf4008 ,,but no matter what usb flash drive 8gb I use or which usb slot on the box I use,,i cannot get it too work,,on the display I get rootfile system then booting...that's as far as it get..it just hangs on booting.yes ive wiped the pen drive using the hp file .
and tried 8 different pen drives..all 8gb or under,,ive got nothing connected too the box only the power.been trying all weekend but getting no where ,,any help or advice please..thank you