Hey, I feel sorry for your old PS4
Also, yes there is a PS4 jailbreak, it's currently only available to NGU's most OG members in a private group called TokeModding.
The reason it's private is because we don't want Sony to know that it exists...
A link to the hidden jailbreak in our group:
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Please don't ask me if you can join the group, Toke controls that.
Oh, and if you want to know what the jailbreak looks like (it's a PS4 running cydia v1,69):
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All of the above is bullshit, I hope you noticed, nobody (expect TokeModding) has a jailbreak hack because the PS4 is impossible to hack