Thanks everyone for your help it's all sorted now, was a problem with the picon not allowing the update to come up on lcd the USB was fine as it's the one dedicated to the box, when I turned the power on I gave it a sec b4 pressing power it wouldn't activate the upgrade but a fella from vu said hold the power button then switch the power on at the back and hey presto it upgraded, I won't be deleting any files from enigma again or downloading picon for ultimo lol