PS3HEN Possible to use modified & resigned EBOOT.BIN on PS3HEN?

[teodordumi]

Greetings!

I am trying to apply a patch to a disc based ISO game, which (as far as I understand) in turn means I need to decrypt, patch and resign my EBOOT file. I have done that, inspected the files and everything seems in order. I used ESSSE Resigner to sign the .elf back into .bin. Since it is a disc based game, I do not have any .rap files or such.

However I can't find any info on this right now, and my question is, can I even run a resigned EBOOT.BIN with PS3HEN? I have a PS3 slim on 4.86, so HEN was the simple modding solution I decided to use.

After rebuilding the ISO the game worked just fine, but the patch didn't seem to have any effect.

For completeness, I am patching a modified version of this mod for BLES00425, attempting to lower the internal resolution to 768 × 576 and gain some FPS, since I'm playing on a CRT anyway. Patch applied with RPCS3PatchEboot.

Thanks in advance.

 

[sandungas]

Yes, it should work fine, because you are executing it AFTER enabling hen
Is a bluray disc image, so there is no room for mistakes because the only way to execute the game is with a backup manager and they requires to enable HEN too
Btw, you can use scetool for it, to decrypt:

C:\>scetool.exe -d EBOOT.BIN EBOOT_DEC.ELF

And to encrypt:

C:\>scetool.exe -t EBOOT.BIN -0 SELF -e EBOOT_DEC.ELF EBOOT_NEW.BIN

The option "t" means "template", and is using the original EBOOT.BIN as a template to copy how it was signed, this way you know for sure you are doing it correctly. Is a bit monkeyproof and very handy

For the video resolution you should try also to modify the main PARAM.SFO inside it there is a value named RESOLUTION where you can restrict which ones are availables for the game/app
The idea is... if you disable the ones you dont want and you only keep enabled the one you want then the game should use it
It could happen the game engine doesnt support it though, in that case it should not boot
Worths a try, it works in some games, here you can see the values availables, use a SFO editor to change them or just a hexeditor
https://www.psdevwiki.com/ps3/PARAM.SFO#ATTRIBUTE