Follow this guide to safely download and install the PRO update for PSP version 6.61. Prerequisites Before You Start
Navigate to Settings > System Settings > System Information . Your system must be on Official Firmware (OFW) 6.61 . If you are on an older firmware, download and install the official Sony 6.61 update first. Step-by-Step Installation Guide Step 1: Download the Files pro update psp 6.61 download