Disconnect from the PC. On your PSP XMB, go to . Launch the PSP™ Update ver 6.60 .
Before installing new custom firmware, you need the official base version. Download OFW 6.60 : Locate the official Sony 6.60 update file (usually named ) from a reliable source like ConsoleMods Prepare the Memory Stick Connect your PSP to your PC via USB Mode. Navigate to the folder, then the Create a new folder named (all caps). Place the downloaded MS0:/PSP/GAME/UPDATE/ Run the Update Disconnect from the PC. On your PSP, go to Memory Stick and launch the "PSP Update ver 6.60".
If you get a "Version 9.90" error, go to the VSH Menu (press Select), change "USB Device" to "Flash 0," connect to a PC, open vsh/etc/version.txt , and change "9.90" to "3.52". 🚀 Phase 3: Installing 6.60 ME-2.3 (Permanent CFW) psp 352 m33 upgrade to 660 portable
I can provide the exact file structures or troubleshoot any specific error codes you run into! Share public link
Connect your PSP to your computer via USB cable and toggle in the PSP settings. Disconnect from the PC
You are now on the most compatible custom firmware ever made for PSP. Here’s how to optimize it:
Once you're on 6.60 Official, it's time to install M33 6.60 Portable. Before installing new custom firmware, you need the
Check System Information again. It should read 6.60 PRO-C2 . Phase 4: Making it Permanent (PSP 1000/2000 Only)