PSP Firmware 3.03 downgrade..

I was wondering, do we need the Firmware 2.00 in the UMD or it must be the GTA unpatched UMD Version that wee need for downgrading?

Also i found a platinum version of the GTA : LCS, would it work?

Use The Edit Button Instead Of Double Posting, I Doubt The Platinum Would Work, Just Rent One From Blockbusters

really? AFAIK a platinum version of a game is the same thing in different packaging with a higher price tag.

He's On About The UMD Used To Downgrade The PSP At Version 3.03, It Has The PSP 2.00 Update On It Which Was Later Patched Thus Making The Downgrader Unable To Work, The Unpatched Version Is Only On The Earlier Versions, So The Platinum Is Obviously Patched