I insert the card till it kind of snaps into place and the button pops out, right?
That should do it.
It is almost impossible to find a Flash Card under 4GB
The H8000 does not have the card size issues that Eclipse used to have, but we have little experience with very big cards.
is the Flash card the only way to upgrade the OS
It is for this release – sorry.
I suggested you just send the card and adapter, cos that will be much quicker and cheaper, and if it does not work for you, no loss.