Firmware Mismatch

Have been dropped in a festival in the middle of nowhere with a brand new dLive S5000 and DM48,

after connection and power up it says there is a firmware mismatch. looks like the surface is on v1.31 and the mixrack is on v1.30

have downloaded the latest firmware v1.40 and followed the instructions for a firewire update, when the memory stick is inserted it says , USB stick present, firmware not found…?

really need to fix this tonight.

any ideas why ?

Followed this link I trust?

https://www.allen-heath.com/media/dLive-firmware-update-instructions1.pdf