Can i download from my PC the games updates for install it then to my PS4 not jailbroken? i need this coz on my work i have internet but not at home,and i cannot take the PS4 to my work
they're not fake signed, so they should work on a legit system, but I don't know how you'd go about installing them. install pkgs is under debug settings (at the bottom of system settings) which hen and normal debug menu will make appear. that's the only way to install a pkg without doing it the legit way.
Yeah I am afraid since you are not jailbroken downloading a game's .pkg updates won't serve you any good since like @pinky said you need Debug Settings which can only be accessed through having a jailbroken console (and currently the latest firmware cannot publicly be jailbroken, and in your scenario where you don't have internet access you would need to go through extra steps to install payloads even if you were on a firmware which can be jailbroken, unless of course the PS4 hacking scene advances more which it seems it's doing.)
So unfortunately I don't think this is possible for you (unless there is some other way, but I doubt there is any easy way on latest firmware). Sorry, although I hope this helped you in some way.
I've personally never tried installing an official update with package installer, so I assume it works the same, just not with a fake signed game. that orbis site is good reference. it not only contains official updates, but it also contains the min ver required for the latest game update.
Too bad Ive been offline last couple of months.
A couple of months late but if OP still needs tp transfer pkgs from USB to offical fw ps4 then follow the link.
That always got the job done for me, was very simple and was all the links were sniffed you just searched for the term ".pkg" and it would find you those links.
If you wanna get more advanced then use something like Fiddler or WireShark like Berion said. You can learn a lot more using those tools.