Upgrading firmware hello... i have a PSP ver3.50 i downloaded ver3.71 from the PSP internet using Wi-Fi. My question is, can i upgrade directly from my PSP using the downloaded ver3.71 from the net w/o downgrading first? what are the implications? will it work properly? what must i do next? thanx!

i have a psp version 3.52 and i have downloaded version 3.90 from the net the problem is everytme i try to upgrade it, it always that the game cannot be started what shud i do i have a psp version 3.52 and i have downloaded version 3.90 from the net the problem is everytme i try to upgrade it, it always that the game cannot be started what shud i do

i have a psp version 3.80 M33-5 and i upgraded it to version 3.95 but unfortunately after doing the upgrade. when im trying to play the game. i can't see any game from the game list that i save in the ISO i have a psp version 3.80 M33-5 and i upgraded it to version 3.95 but unfortunately after doing the upgrade. when im trying to play the game. i can't see any game from the game list that i save in the ISO