PS3 Trying to mod SELF file

Elegance

Newbie
Jul 20, 2019
2
0
1
Hello.
I'm trying to mod Tomb Raider Anniversary BLES01195 v01.00 av01.01
I know how to mod EBOOOT, but here the games are using SELF files. I tried to edit the SELF file>>game crash
I tried to decrypt the SELF file with TrueAncestor_SELF_Resigner_v1.98 and edit the ELF file, bit i can't find how to resign it from ELF to SELF.
Or i'm doing something wrong?