When i was playing, my psp froze!whatever button i press it doesnt respond. so i took out the battery and put it again but it wont start anymore.even when i plug it to the adapter w/o the battery still it wont turn on.(no lights no aythng. it isnt brick bec. i only play UMD's and use Sony firmware)But after 3days of resting it, i tested it again and it turned on!! but when i turned it off, i wont turn on again!!=( what do you thnk is my psp's problem?i aldrdy tried Sony's service center but they are asking me for $250!!(a new Psp here cost $200)Im in the Philippines btw..help pls..