(adsbygoogle = window.adsbygoogle || []).push({}); Now after days of screwing around with the ps3's firmware I had an idea to change the warning prompt when the ps3 boots (the epilepsy one).
Now if you extract PS3UPDAT.PUP on OFW 4.41 you get a couple files..
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open up update_files.tar and you'll find a file called 'dev_flash_018.tar.aa.2013_04_19_031009'.
Decrypt that with fwpkg.exe (released by wanikoko + geohot). You now have a file called 'dev_flash_018.tar'
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If you open that up you will see sysconf_plugin.rco in '/vsh/resource/'. Open that rco file with RCOmage and edit etc. like you would CFW.

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Now after editing, save and compile back into sysconf_plugin.rco, and add it back to the dev_flash_018.tar file into '/vsh/resource/'.

Now we have to encrypt 'dev_flash_018.tar' back to 'dev_flash_018.tar.aa.2013_04_19_031009'. Make sure to compile as SCE FWPKG format.

After you encrypt you should get a file looking like this (dev_flash_018.tar.aa.2013_04_19_031009):
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add 'dev_flash_018.tar.aa.2013_04_19_031009' back into 'update_files.tar' and repack the PS3UPDAT.PUP file with the new update_files.tar



NOTE: THIS IS ONLY THEORY BUT I BELIEVE IT WILL WORK

also, dev_flash3 might have a hashing system on the dev_flash tar files... so idk about that.

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(If you want to test/study code)

*sigh* I go over this everytime lol. .PUP isn't encrypted... AT ALL. It's literally offsets and raw data. I've repacked my own pup tons of times and it works everytime. Plus I have all the 4.41 keys aside from appldr.

Jake even with any editing it will fail,you have to make sure it matches the same format and size,Use the tar packer in mfw builder or PUAD or use the failoverflow tools and linux its better.