Did this guide work for you? Still getting a "DRNFFFFFFBOOT" error? Drop a comment below or hit up the /r/PSP subreddit.
For years, 3.52 M33 was the gold standard, but it is now obsolete. Modern CFW (Custom Firmware) offers better compatibility with newer games, PSN games, and better plugin support. We will be upgrading to , which is widely regarded as the most stable, "permanent-capable" solution for nearly all PSP models. Phase 1: Preparing Your PSP
For many PlayStation Portable enthusiasts, the "M33" custom firmware series by Dark_AleX represents the golden age of PSP homebrew. If you are still running , you are using a firmware that is nearly two decades old. While it was legendary for its time, it is now severely outdated. psp 352 m33 upgrade to 660 portable
Once you have flashed the system to 6.60 (official or temporary custom firmware), you need to install the permanent custom firmware.
Before starting, ensure you have the following: Did this guide work for you
Upgrading from 3.52 M33 to 6.60 PRO-C brings: Upgrading from 3
Here is the detailed, step-by-step procedure to upgrade your PSP. Follow each step carefully.
Never attempt to use a "CIPL Flasher" on a PSP-3000 or a PSP-2000 "v3" (TA-088v3 motherboard), as it will result in a permanent brick. Since you are coming from 3.52 M33, your hardware is definitely compatible.
Disconnect, go to , and launch PRO Update .
Because 3.52 M33 is too old, you cannot directly install the new custom firmware. You must first install Sony's official 6.60 firmware.