environment is a two-step process: first, you must revert to or install the official Sony 6.60 firmware, and then you can re-apply a modern custom firmware (CFW) like 6.60 PRO-C2 or 6.60 ME. Prerequisites Fully Charged Battery : Ensure your PSP is at 100% or plugged into a charger. Memory Stick : At least 64MB of space for the update files. : To transfer files from your computer to the PSP. ConsoleMods Wiki Step 1: Install Official Firmware (OFW) 6.60
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