Make sure to clarify that even with mods, the PS3's hardware can't produce true 4K output for games. It's more about upscaling or media playback. Also, mention that the "Pro Pkg" might be a term specific to certain mod communities, so define or explain it in context.
I should also check if there are any official patches or firmware updates that support higher resolutions. The PS3's last official update (3.55 and 4.80) still maintained the original 1280x720 max resolution. Some later models used a PS3 Super Slim with support for HDMI 1.4a, which allows 4K upscaling if the TV supports it via HDMI 1.4, but not true 4K output. Ps3 4k Pro Pkg Download
Potential sources to consult: PS3 homebrew communities like PS3Hax, forums like PlayStationHacks, and mod groups like Rebug or PS3Scene. Also, check user guides for CFW installation and features. Need to mention that 4K on PS3 is not possible for games but might be for media if using a 4K display via upscaling. Make sure to clarify that even with mods,