What is this tool?
It re-marries the fake pkg update to the fake pkg game.
When is this useful?
This is needed when the game and the update were dumped on different PS4 consoles. And when you try to install such an update you will get an error. This tool fixes that.
Does this work if game CUSA does not match update CUSA?
It could, but in 99.99% cases it wont. Different CUSA games typically have different file structure (different regions/languages etc), but sometimes same exact game is released in multiple regions under different CUSAs, in those cases it will work, but Ive ever only heard of one such game. So as a general rule. No CUSA of update and the game have to match.
Will this work with not fake pkg dumps of either update or game?
It could, if you have secret information no-one outside of the game developer/SONY has. You need to know the password that the pkg was created with. No one knows this. Dumped fake ones use all zeros for password. So long story short, both game and update have to be fake pkg dumped from a hacked PS4.
How do I use this tool?
Simple. Run it, select update pkg, select game pkg, select output directory (a new folder will be created in this directory) and hit GO. Thats it.
What are those extra options?
Mouse over for tooltips.
What platforms will this run on?
Windows Vista and later, but it requires Microsoft .Net 4.6.1 (released in 2015) or later. If you are on Windows 7 or 10 and keep it updated through Microsoft you probably already have it installed, games will often install this automatically for you as well. You can get it directly from MS as well - https://www.microsoft.com/en-us/download/details.aspx?id=48130
If you get a DLL error!
Install Microsoft Visual Studio Redistributable. It is required to run programs written in C++. Just like .Net this is often installed by games, so most people will already have this installed. https://go.microsoft.com/fwlink/?LinkId=746571