So I Updated My Psp

i updated my psp to cfw 3,90-m33-3
but to my horror i cannot play this 3 games
god of war,nfs prostreet and the warriors
its says the game could not be started
(80020148)
any help?
thanks in advance

When you do an update, be sure to do the following fix in the Recovery Menu:

RECOVERY MENU:
To enter Recovery mode, turn ur psp totally off (not sleep mode), now turn on and hold R trigger at the same time, this is ur recovery menu.
-Now sometimes, doing upgrades causes bugs, to fix, i recommend everyone who does a upgrade to "delete flash1 and reset settings" from recovery.
-Goto Advanced and select "delete flash1 and reset settings"
-Also in Recovery i recommend u boost ur CPU speed to max for both options.
-Also in Recovery is Configuration folder, make changes so it looks like this:
skip sony logo - enabled
hide corrupt icons - enabled
game folder homebrew - 3.xx(depending on firmware) or 1.5 for homebrew(fat only and u need to install the 1.5 kernal addon patch for each different CF)
autorun program at .... - disabled (this is used to recover back to 1.5 or run a eboot if u mess up ur psp)
umd mode - sony np9660 (u dont need a umd in anymore, and it plays any iso/cso)