Why can't my PSP start up?

PSP firmware 3.52 M33 Black Screen HELP!!?

• ok i had psp 1.5 for a long time and was doing great, then today i upgraded my 1.5 to a custom firmware 3.52 m33. everything was great. the games/isos workd perfect. until i wanted to try the psx on psp. to do that i had to go recovery mode and go pluggings and enable the two thingies, i did that and played a psx game, after that i went to play psp iso none of the isos work. if i go to it black screen comes and just stays on black screen cant even turn off unless i take the battery out. and keeps doing that, even if i wanted to upgrade to 3.80 it wont even start, i go to it, says psp. then black screen then i noticed the pluggings in recovery mode are gone, was thinking how the heck did it go i didnt delete it. i tryed every way and still wont work. i cant even upgrade or downgrade, plzz help me im begging u before i end up breaking my psp

• Answer:

  you could use the recovery menu and recover back to 1.5 ofw or you can try to use a pandora's battery, if they plugins ever come back disable them and it should solve the problem. Other wise doing one the of the 2 things i listed