BTW, my first post (I should have made this clear earlier), refers to machines based on maygay's M1 a/b hardware (Thought the OP had an M1 a/b based machine), so sorry for any confusion, as I do understand on Epochs, a key can be used, and there is no need to change the ROM's.
ahh, well I've never heard anyone say about different versions before, other than v2 to get rid of the annoying buzz!
So how do you go about getting these rooms then? Can you download them and reprogram the chips, the chips look like the same type we use at work and we can program them in this chip thing (I don't do this for a living mind, hence not knowing! But will ask next week)
And maybe download the code from some (dogy) website!
Must move the battery, 30 quid is quite a lot to fix it, and I suppose they will only cost more as there is less of them. Thanks.