Erm i upgraded recently to 3.52 M33 and it worked with a couple of my iso's but now everytime i boot up an iso it says that the game cant be started. i tried to go to recovery menu to change the settings but whenever i go to configure it freezes and crashes. I also checked the system i was running but now it says im running on 3.40 O.E A even though i upgraded to 3.52 m33. I have no idea whats going on and my friends having the same problems. Any help would be much appreciated and im sorry for bothering you guys but im pretty sure you guys know what your doing and i dont want to cause any more damage to the psp.

Much appreciated.

It sounds like the update to 3.52 M33 didn't work properly.

I think the best thing to do would be to downgrade to 1.50 via recovery if possible, then reinstall 3.52 M33.
(you need to run the 1.50 patcher in the first link, then the easy installer in the second)

If you can't downgrade using recovery, then you could set up and use a Pandora's Battery.
In fact, it might be a good idea to set up a Pandora's Battery if you have a spare battery anyway.