Originally posted by Deviluke
Converted from .Rar to .Zip for save wizard and this save is giving the 10030 error when attempting to resign.
Make sure you're taking only the CUSA folder when you make a ZIP. I wouldn't use anything too complicated to make the ZIP. Windows does the job just fine. WinRAR for extracting the RAR, as errors have been reported for some other programs.
If still issues, instead of using a ZIP, try making a fake profile folder on your USB stick, separate from your real profile folder, put the CUSA folder (unzipped) in there, and resign as is without using the Import button. Filepath would look like so:
drive letter >>> PS4 >>> Savedata >>> fake profile folder (a bunch of 0s works just fine) >>> CUSA07823 >>> PS4 save files