Finding a Demo
Step 1) Clear all 'Cookies' from your internet browser
Step 2) Close and restart your internet browser
Step 3) Go to
http://store.playstation.comStep 4) Select a region you wish to browse
Step 5) After you find a demo you want its time to get it.
Signing up for the PS Store
Step 1) Make sure you register a new PSN account for the PS Store region you found the demo you wish to download.
Step 2) The address is a common problem for people. When in doubt google one.
Step 3) If you are still having trouble then search google and youtube for walkthroughs for setting up a PSN account.
Getting the Demo
Step 1) Use your newly created PSN account to sign-in. It will automatically take you to the region's Store you selected when you signed up for that account.
Step 2) Follow the normal steps of downloading the demo you want.
Step 3) You will be asked if you want to deactivate the previous PSN account that your PSP was using. Just say "Yes" as you can always re-activate your original PSN account.
Switching back to your Original PSN account
Step 1) Sign-out of your foreign account.
Step 2) Sign-in to your original account.
Step 3) Go to 'Account Management'
Step 4) Go to 'Activate/Deactivate PSPÂŽ System'
Step 5) Click the 'Activate System' option to download the .xpd that will re-activate your original account. Chances are you'll see the "are you sure you want to deactivate the current PSN account?" and if so be sure to say "Yes"
Cała procedura ze strony pspdemocenter.com .