I see threads everywhere about how you can install a CFW without using a Pandora battery, but do you still have to downgrade your OFW first? I got my PSP 2001 from a guy on craigslist and he has it updated to 6.2. Do I have to downgrade first before I can use this new method? Or does the ChickHEN and all that work no matter the OFW? Also, if I do have to downgrade, is there a way to downgrade without using a Pandora battery? EDIT: Corrected OFW, originally put 6.5.