CUSTOM FAKE UPDATES
Files needed:
FAKE PKG TOOLS 3.38 (you must find this yourself)
A FAKE SIGNED (GAME or PATCH) PKG that you want to modify (you must find this yourself)
Notepad
Hex Editor.
Instructions:
Open the F-signed game PKG with PUBCHK (pkg pass should be: 32x "0"'s), extract the IMAGE0/EBOOT.BIN and the entire SC0 folder to a memorable location.
Drag the SC0 folder into the IMAGE0 folder, and rename the SCO folder to "sce_sys".
MODIFY YOUR PKG CONTENTS HERE: swap textures, edit eboots/files: do what you like!
Use GENGP4 to make a gp4 of the project (if modding a PATCH pkg make gp4 after the modification of the SFO file)
Open the GP4 in notepad and change "<volume_type>pkg_ps4_app</volume_type>" to "<volume_type>pkg_ps4_patch</volume_type>" &
"digital50" to "digital25".
Open PARAM.SFO in hexeditor, search for and change "1.00...........gd" to "1.01...........gp" and save. (GD = game disc, GP = game patch)
Open the GP4 in PUBGEN, go to PROJECT SETTINGS, set passcode to the same as base game/patch pkg had: this must match) > in PATCH tab select the original base PKG you used > then build the modified PKG.
Install through DEBUG settings on PS4.
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