Here is a text guide for those who need a bit more help. There are two ways to resign saves, but they both boil down to the same basic thing. Whatever you are resigning needs to have a filepath *precisely* like the filepath your PS4 would naturally assign to it. The only exception to this is that if you are using the Import method, the CUSA folder can, and should, be in a ZIP.
The Import/Upload Button
In the Import method, only a ZIP file works, but it also needs to be a ZIP file with the proper filepath. So first, make sure that what you are working with is indeed a ZIP. A RAR will not work. A 7z will also not work. Just because you have downloaded a ZIP, that ZIP might not work. Look to see what’s inside it. There might be more folders inside of that ZIP before you get to the CUSA folder. If that’s the case it simply won’t work as is. You need to tinker with it first.
If you have to do any tinkering at all, or if the saves are in a RAR or 7z, you will need to extract them first. To do that, I highly recommend using WinRAR version 5.71 or later, which is free (they are up to 5.90 now). There are plenty of other good programs out there for extracting compressed files and I am not attempting to express a preference. For some reason, some of my favorites will lead to the occasional error in Save Wizard. I have yet to see that be the case with WinRAR unless it is a version from before 5.71.
This is the correct filepath for a ZIP, if you are using the Import button: ZIP file >>> CUSA folder >>> PS4 save files
The CUSA folder must be properly named. Just CUSA and the number. No text. Not “CUSA0001 – trophy time”. That is not how your PS4 would name a CUSA folder so Save Wizard will not read that as a CUSA folder. If you see it that way and you also know it’s the correct folder, rename it.
There can be no extra folders in the way. The CUSA folder must be directly inside the ZIP, and the PS4 save files must be directly inside the CUSA folder. If you see extra folders, just navigate to the correct CUSA folder, the final one before the files.
If you see that the path inside of your ZIP is off, multiple folders perhaps, or perhaps it's a save set, or any type of file other than a ZIP, then extract it. Then navigage to the CUSA folder. Make sure it’s the folder with the save files directly inside, and make sure it’s named correctly. Now you need to turn it into a ZIP.
To ZIP it, use Windows itself. Don’t use WinRAR or any other program. In Windows’ File Explorer (on Windows 7 or later), right-click and a context menu will pop up. Click “send to”, and finally “compressed (zipped) folder”).
From there, open Save Wizard, enter the Resign menu, and then hit the Import button. Navigate to the ZIP you just made and assuming you zipped the correct CUSA folder, it should Import correctly.
Fake Account Folder
If you use this method instead of the Import button, there’s a one-time step to do first. Navigate to the following directory on the USB stick where you want to put your saves, substituting whatever drive letter is necessary:
E:\PS4\Savedata\
Here, you should see your real account folder. It’s the 16 digit alphanumeric sequence you used when setting up Save Wizard. Now you’re going to make a fake one. It can be anything, really, but you want to be able to tell it apart from your real one. For this example I’m just going to use a bunch of zeros. So create a directory like so:
E:\PS4\Savedata\0000000000000000
Take the CUSA folder you want out of the download. The same rules apply as above, except that it absolutely cannot be in a ZIP. Meaning, it must be named correctly. There cannot be anything extra between it and the PS4 save files. If there are extra folders in the way, then move to the correct folder and grab that one instead. If you need to extract it, make sure you are using WinRAR, at least 5.71 or later.
Then place that directory in the fake account folder you just made. It should look like so:
E:\PS4\Savedata\0000000000000000\CUSA folder\PS4 save files
NOTE: A few times I have seen people copy saves directly to their real account folder, attempting to resign both from and to the same place. You do need to resign from a fake account folder to work.
Open Save Wizard. Enter the Resign menu and you should see those saves listed directly in that menu, with the profile with a lot of 0s. You can now resign directly from that menu, without needing to hit the Import button. Note that you do NOT need to register that fake profile. You can if you want, but it will take up one of your Save Wizard slots.
Once you are done, delete the saves from the fake account folder, but leave the fake account folder itself. You can use it the next time you resign saves.