(adsbygoogle = window.adsbygoogle || []).push({}); I have a CFW it's a 4.75.3 REX Cobra 7.1 how do I update it to 4.80.1 Cobra 7.3 and can I just update it or do I need to download a spoofer?

Just got to REBUGs site and download the newest update and then make a folder on a USB that's formatted to FAT32 called PS3, inside that make a folder called UPDATE and put the file in there and rename it PS3UPDAT.pup. Then go to System Update and select Storage Media.

Uninstall any current spoofers, then just install the latest like normal. I don't recommend as 4.75.3 is much more stable, but up to you.