Cobra USB Full Software BC Findings
I did some investigation about Cobra USB's full software emulator and I came to some conclusions that I need you help to continue.
Extracting the contents of the CFW that Cobra has on their site reveals that there is NO ps2_emu folder of the dev_flash folder of the firmware, which means that everything remains unchanged/unmodified, Cobra team didn't mess anything with those files.
Since on the guide of the dongle it says in a nutshell that the first time you launch a PS2 game it makes a change inside PS3's files, I really had to take a fast look at the contents of the backup loader also available on their site. There is nothing interesting inside apart from the layout PNGs and the EBOOT.BIN that -if what they say in the manual is correct- it must change a string on a file inside dev_flash to enable non backwards PS2s when an Original PS2 Disc gets inserted to recognise it instead of Unsupported Data as a PS2 Format Disc and being able to launch it from the XMB without the need of a backup launcher. An other possibility is that it changes a value on xregistry.sys that we are not aware yet of what it does.
So after that I come to a brick wall to continue without your help.
It would be very kind if somebody with the dongle and a Non BC PS3* could make a dump (and send me via pm) of his dev_flash BEFORE the launcher patches the dev_flash and a different dump after it applies the patch so i can see what the heck is messing with. Also if he could be kind to do the same thing with his xregitsy.sys I'd be very kind.(I know that it holds unencrypted personal data, don't worry the last thing I care is about your personal info, I once posted my xregistry publicaly here too, but if you still don't want me to know any of your personal info before you do anything put fake info on your account settings, either way I won't bother)
*=For those who want to know exactly what are the Non BC models are all slim models plus all Fat Models with the series of CECHG-CECHQ (Alphabetically all variables between G-Q)
...and the worlds shall reconnect