Connect the USB stick to the USB port furthest to the right of your console and start the console in recovery mode
Select option 6 (System Update), and follow the instructions that appear on the screen.
Once finished, enjoy the CFW 4.21.
Update: They have now released (via ps3-solution-pour-tous.doomby.com/blog/news-ps3/cfw-arch-4-21-finale-version-0-1-for-all-ps3.html) PS3 CFW Arch CEX 4.21 Final v0.1 for both PS3 Fat and Slim consoles (above) for those interested!
Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!
no, it is necessary that you said. Because we tested on BD engraved (not original comics like you did). The patch Cinavia is not removed if it puts a message after 3 minutes of film. The principle of patch Cinavia is able to play AVI / MKV etc... or blu-ray disc engraved (anti copy protection skipped).
But the bdp_plugin.sprx file has never been supported on any existing CFW! This explains to you that the patch cinanvia is only a partial patch to read engraved video or video encoded AVI / MV or other format and not Blu-Ray or DVD originals that have DRM in them cinavia since the bdp_plugin.sprx is not patched.
In this case, it means that aunun patch Cinavia is therefore not functional if you share your principles.