version 12 being a slim PSTwo
you can use the Exploit
use the modded system to launch Launch Ele and use it to build the exploit on the Second MC in the modded PS2... then find online a copy of HDloader for the MC and install it... You will need to make or use a TITLE.DB file for booting the eploit....
I have 2 tuts... one on making a custom Game Save and setting up the software... older and has older software.... and one that is used to install the exploit from the HDD using HD Loader.... if you can run HD Loader on the modded system and there is a HDD... then I would try this.....
Or we can work with what you have to start fresh... your choice...
PS3 Slim 320GB
PS2 v11 exploit w/300GB Maxtor
PS2 v10 exploit w/80GB Samsung - Network Games
PS2 v10 exploit w/60GB Samsung - Network Games
PSP 1001 3.52M33 w/10GB total storage
NDS DSReal 4GB