Hi to all

i have psp 2000 TA088-V3 2g...im in 6.20 tn-d permanent then i downgrade to 5.03 official firmware..then when the update of 5.03 finished it restarts then sony logo appears then white screen.....what is the problem of my psp ??is it bricked or not ???can it fix using the pandora battery and magic memory stick ???

please answer

thanks

sorry for poor english