1) Make sure you did as Rydian told you (copy/paste all of that).With that 6.60 version.txt file within your newly created seplugins folder, and the version.txt option enabled in the Recovery Menu (bring up the VSH menu by pushing select on the XMB when PRO is enabled) you'll see that the System Info reads your faked version for your PRO firmware. Once it reads this Media Go won't need to update and you can transfer freely.
So..
In recovery menu, enable version.txt
Exit back to the XMB
Hit select to see the VSH menu...
Now, should I be seeing something specific in this menu or should I go to System Settings > System Information cos when I do it's still showing up as 6.20 PRO..
Sorry people, i'm completely new to this so bear with me lol
2) Enable it in recovery menu.
3) Press select and "reset VSH"
4) Go to system info and it should say 6.60 (if not, your version.txt might be faulty)