Here are the instructions on how to upgrade your PSP to 6.39 OFW so you can install any of the following Hen or LCFW so you can run Homebrew or ISO backups of PSP

PSP developer Neur0n, famous for his CFW releases has finally released a LCFW for 6.39 OFW. If you’re on this firmware and don’t want to use the 6.39 to 6.20 downgrader, you may

Just as the 6.38 to 6.20 OFW downgrader hits the PSP-centric newsrooms, Sony releases a new firmware update for the PlayStation Portable. Important Update: You can now downgrade your PSP from 6.39 OFW or install