A new method of vulnerability came out recently, a method probably fake.
What do you need
1. Windows or Linux system
2. charles web debugging proxy or burpsuite
3. A film with BDLive.
4. Connect to PS4 with Lan.
Insert and start the film, short wait at Charles' debugging appears after about 1 minute a bootloader file.
The file looks like this:
Save as txt (very important to save as txt save on PC)
Change the first line
I can't check this method but i believe it's fake, because PS4 can't run and install native linux distribution.