The easiest and safest way to generate a LIC.DAT file is using Aldostools' famous on a Windows PC. Specifically, we will use the PS3 ISO Tools or create_ps3_iso.exe utilities embedded in the suite. Step-by-Step PC Guide:
In the hex editor (like HxD), select → Checksums and choose CRC-32 . Note the generated checksum value. Update the File : Navigate to offset 00000020 . Ps3 Generate Lic.dat