BD-JB5 does not work directly on 13.60

What it means

BD-JB5 is a jailbreak entry point that runs from a Blu-ray disc. Its README says it is supported up to firmware 13.42. On 13.60, the disc procedure you may have used on an earlier firmware does not work on its own.

What to do

1Check your firmware against the supported range

The README lists direct support up to 13.42.

Source: BD-JB5 README ↗

2On 13.60, the console must already be jailbroken

For 13.60, the README describes sending bdj_unpatch.elf to the ELF loader to unpatch BD-J, and only then using BD-JB. That step needs a PS5 that is already jailbroken through another chain.

Source: BD-JB5 README ↗

When to stop

! Not a first way in on 13.60

The bdj_unpatch step is not a separate entry point for a 13.60 PS5 that is still locked. Without another working jailbreak on that console, BD-JB5 alone will not get you in.