Merlin DuOS Tablet PC - switching from Android back to Windows

I have a Merlin DuOS tablet PC, with a manual on the other side of the planet.

It normally boots in Windows, but wasn’t connecting to the keyboard/dock.

I noticed that it switches to Android (via a shortcut labelled "DuOS"), and I thought, well maybe in Android it will be easier to diagnose the problem. I was wrong.

And worse, now I can’t get it to boot up in Windows, and there's no way I can find to switch back to Windows from the Android OS interface.

I've tried all the obvious things, like searching for the manual online, and the searching the WP forums for Merlin, DuOS etc.

Can anyone point me to a PDF of the manual, or does anyone know how to switch back to Windows from Android on this device?

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