Psp 352 M33 Upgrade: To 660 Portable

However, trying to run modern homebrew or ISO backups on 3.52 M33 today will result in errors. Games released after 2007 require higher firmware keys. To unlock the full potential of your handheld, you need to upgrade to 6.60 or 6.61 Custom Firmware (CFW).

Old M33 firmwares sometimes had "version.txt" files that tricked the PSP into thinking it was on version 9.90, which blocks official updates.

On your PSP, navigate to and launch the PSP Update ver 6.60 . psp 352 m33 upgrade to 660 portable

to "flash" the PSP back to an official firmware like 5.00 or 6.20 first. www.reddit.com Phase 3: Installing Official Firmware 6.60 PSP: Updating from the 3.xx OE CFWs to the 6.60 ME CFW

The Ultimate Guide to Upgrading Your PSP from 3.52 M33 to 6.60 Custom Firmware However, trying to run modern homebrew or ISO backups on 3

This guide works for all, but FAT (1000) and Slim (2000) are recommended for permanent flashing. Memory Stick Pro Duo: At least 1GB is recommended. USB Cable: For connecting to a PC. Battery: Ensure it is charged to at least 50%. Files Needed: Sony Official 6.60 Firmware ( EBOOT.PBP ) This guide works for all, but FAT (1000)

Boot up the console while holding the to access the Recovery Menu. Toggle your USB mode setting to access Flash 0 . Connect to a PC, open /vsh/etc/version.txt , change the line reading "9.90" back to "3.52", save, and switch your USB mode back to Memory Stick. DRNFFFFFFCD Error