1. of all i need to know wat model psp u r using is ta-082 or ta-079 or ta086
got many kinds of model
2. inside each psp has it's own key="windows registry"
to fix the problem u having is to fix the key. go search the website for brightness fix then only up grade the 3.71m33 cfw

3. as for slim psp can make pandora battery make sure is orignal battery

4. call me for more info......
!!!!one more thing need to remind that change key will brick easly and will not able to recover back !!!!DO TAKE NOTE!!!!

i have upgrade and unbrick for many ppl liao.. if u not trust no neeed to call me
my hp is 016-6406328(S'ban N.sembilan)

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Added on April 15, 2008, 1:16 pm
welcome to the technical club my friend...