PS3 How to compile a sign a SPRX in a way that it is compatible with the original game SPRX files?

[relt]

I am trying to compile and sign a SPRX which a game would load (because of an oversight). It is not a modded PRX, instead it has been compiled with Visual Studio 2013. The resulting SPRX which comes out from the compilation works with RPCS3, but it is not properly signed, meaning that the PS3 won't load it. How do i make it so that it's just like the other SPRX files and will load on the PS3?

 

[bguerville]

I am trying to compile and sign a SPRX which a game would load (because of an oversight). It is not a modded PRX, instead it has been compiled with Visual Studio 2013. The resulting SPRX which comes out from the compilation works with RPCS3, but it is not properly signed, meaning that the PS3 won't load it. How do i make it so that it's just like the other SPRX files and will load on the PS3?

You can use scetool with a template sprx file from the game itself.
The command line can be found here, you only need to change the 3 file names and keep the rest intact: https://www.psx-place.com/index.php?posts/375994

 

[relt]

Oh i thought it wouldnt work with SPRX. Thank you!

 

[relt]

Well after signing it and putting it in the game files in the proper way, the console shuts off in an instant during loading, while also leaving the power LED off. What could be causing that?

 

[bguerville]

Well after signing it and putting it in the game files in the proper way, the console shuts off in an instant during loading, while also leaving the power LED off. What could be causing that?

Hard to say for sure without some debug logs.
Assuming the signing is correct ie done properly using an appropriate template, it could simply be caused by your prx file itself.