How to tell from a GTA LCS original version and patched version
I Found this on PSP Homebrew Wikipedia
Similarly to how you can tell which firmware PSP you are getting from the box code, this tip enables you to find out if you are purchasing a patched version of GTA LCS or not.
Please note that the following are for the EU/UK versions of the game.
These are the differences in serial numbers on the game cover
GTA: LCS (Pre 2.6 version):
GTA: LCS (2.6 Version):
Also on the spine an 18 logo in a red circle is present in the pre 2.6 version, but in the patched 2.6 game the 18 red circle logo isn't present on the spine. The UMDs differ too.
Serial number of the UMD of a pre 2.6:
Serial number has a revision after it in the patched 2.6 game: