I don't know what you have installed. Given this topic, I assume 6.0-rc.
But 6.0-release was released today, which needs to be flashed, you can't update to it from the box.
Make an autobackup on a USB stick, download and place the extracted image files on the same stick, boot the box with it, flash it, and after the flash let it restore the backup..
Will Autobackup to hard disk work too (as it usually does), or do I need to backup to USB stick?
I'm on 6.0 RC right now.
Time for a new thread for 6.0 Release perhaps?
VU+ Duo2