Need help ..how to downgrade psp v5.5?

any who know how to downgrade v5.5 of psp 1000 plz help me i downloaded it from the psp official site..................help me plz thanks

Wish I could help but I dont know... I'd say either Google , Yahoo or Ask it...

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Wish I could help but I dont know… I’d say either Google , Yahoo or Ask it…
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I did that but I didnt find anything… I thought of something else… If you are living in Pakistan go to a game or electronic shop and tell the Guy I want my PSP Console to be Multisystemed if he asks what that means tell him you want to crack so you could play copy games… It will cost you about 2000 rupees and when he done that, buy some copy games(or you can download from the Net) plug in your USB from PSP to PC and copy the game and Paste it into the ISO File. and play it!! :D

thanks for the info but i hav done it myself without wasting my precious money..............

its toooooooooooo difficult and risky .................also dangerous............but where there is a will there is a way.......................hurra...........i hav hacked latest fw 5.5 of psp...................yyeeesssssss!!!!!!!!!!! i so excited............