Problems Updating OS

I know this sounds like a stupid question.

But I've searched, looked through the manual and I can find anything that explains how to Update the OS on the 2000XL.

I have a Floppy disk with my 1.2 BIN file on it.

Whats the next step?

load it

I've tried this, but it still says version 1.10 in the version window.

Is there some sort of write protect function?

Got it!

Couldn't see the 'Do It' button at the far right.