Version 6.37 So should I go for the 6.20's permanent patch ?? Does this patch mean, you can never go to 6.60?? Do I need to downgrade? The post talks about 6.60... First and foremost, check your Data Code - remove the battery and look for the serial number on the sticker inside the compartment. Under it, there should be a Data Code - it consists of a number and a letter. If it's under or equal to 8B (lower number/earlier letter in the alphabet), go ahead and install the 6.60 Sony OFW following the guide. If it is 8C or higher, install 6.20 Sony OFW and follow the guide. Next, download the corresponding PRO updater and follow installation instructions. After that, you should be up-to-date which should eliminate most firmware-related issues MY data code is 8D so I need 6.20.... But still do I need to downgrade? I am on 6.37.. Is this method suffice for Downgrading a 6.60 PSP to 6.20? Same for 6.37 to 6.20?