Hello,

I have updated my PSP to latest version 5.50 Prome-4 assuming all the games would work.

But when I start the game I get

"The Game Could not be started. 80020148"

I have this issue with latest games like

MGS Peace Walker.
GOW 2

They are all ISO's. Could anyone let me know any fix for this one?

PS: other games work fine, but all the latest games seems not be working.
Any help would be appreciated.