PS Persona Patches

A set of patches for the PSV/PS4 Persona games.

Contents

• Requirements
• Usage
  • Listing Available Patches
  • Applying Patches
• Available Patches
• Building a Custom PS4 Patch
• Patching PS Vita Games

Requirements

• xdelta in PATH
• Python 3

Usage

Clone or download this repository, then use patch.py to apply patches:

patch.py [-h] [--patch [PATCH]] path_in [path_out]
positional arguments:
path_in path to game eboot (in ELF format)
path_out path to patched game eboot
optional arguments:
-h, --help show this help message and exit
--patch [PATCH] patch ids to apply

Listing Available Patches

python .\patch.py .\eboot.bin

Example output:

Found Persona 5 Royal US v1.02 CUSA17416 0102
Available patches:
intro_skip Intro Skip
mod Mod Support
no_trp Disable Trophies

Applying Patches

python .\patch.py .\eboot.bin --patch intro_skip mod

Example output:

Found Persona 5 Royal US CUSA17416 0102
Applying patches...
<...>
Applied intro_skip mod
Done

Available Patches

• Persona 5 (PS4)
• Persona 5 Royal (PS4)
• Persona 4 Dancing (PS4/PSV)
• Persona 3 Dancing (PS4/PSV)
• Persona 5 Dancing (PS4/PSV)

Building a Custom PS4 Patch

The pkg directory in this repo contains some templates you can use to build a custom patch package.

You may need to edit some files to match your version (e.g. param.sfo, patch.gp4, etc.)

The general process is:

1. Dump the following files from your game:

   sce_sys/npbind.dat
   sce_sys/nptitle.dat
   eboot.bin

   Replace the dummy npbind.dat and nptitle.dat in the provided patch/sce_sys/ directory.

2. Apply the patches you'd like to use to eboot.bin.

   If eboot.bin is not in ELF format, you must convert it to ELF (e.g. using ps4_unfself before applying patches.

   Place the patched eboot.bin in the provided patch/ directory.

3. If you've applied a mod support patch, package the mods you'd like to use into a mod.cpk file using your preferred method.

   Replace the dummy mod.cpk in the in the provided patch/ directory.

   Alternatively, if you're using the ftp mod.cpk method, upload mod.cpk to the correct location on the PS4 filesystem.

4. Edit patch.gp4 and set app_path to point to your base game package.

5. Build the patch package with your preferred tool. When repacking a game update, make sure to also include all other data files that were originally included in said update (e.g. patch2R.cpk for P5R v1.02).

6. Install the package on your PS4 and boot the game.

Patching PS Vita Games

1. Dump a decryptedeboot.bin and eboot.elf for your game:

   • On PS Vita, use FAGDec and decrypt to SELF and ELF.
   • On PC, using Vita3K:
     • Install the game (and any game patches) - the decrypted eboot.bin should then be in the game folder.
     • Convert eboot.bin from SELF to ELF format using vita-unmake-self.

2. Patch eboot.elf.

3. Backup the original eboot.bin.

4. Inject the patched eboot.elf back into the original eboot.bin using vita-elf-inject.

5. Replace the original eboot.bin:

   • On PS Vita, use rePatch.
   • On PC, using Vita3K, overwrite the original eboot.bin.