After much research I have pretty much given up on trying to acheive an unlocked MSO.
I did go so far as to use the tips from the "How To Remove Warranty Void Security Stickers" (that works a treat by the way, in like Flynn, Errol that is) and actually open her up. Sure enough, no header pins and I'm fairly certain I'll really mess things up if I get my clog iron in there. Interesting thing I did note by the way. Did anyone notice an orange marker pen near every torx screw internally?
I did checkout the link here :-
http://peter.dreisiebner.at/rigol-forum.htm#mso1000z but only get linked to the video that has the jtag pins on the board. My MSO1104z does not have these pins, well headers that is.
I found hope in the idea that I might be able to dump the memory and gain access to a unlock key that way; though the SCPI commands
:SYST:UTIL:READ? 15441920,13262848
is failing for me. I just get an error message
"There was an error when sending the SCPI command."
Bar any new ideas, and I'm fairly tuned to the fact that I don't think anyones managed to unlock an MSO1104 as yet, I reached out to Rigol for a real quote. Originally $510 today reduced to $300.
Someone knock me out of my misery and tell me theres a way to get more goodies out of the hardware I already own. (that is without soldering my board ahem)
Much appreciated