My friend downloaded GTA: Vice City from a website other than Google Playstore. It came in two files - one is .obb (996 MB) file and other is .apk (4 MB) file. We have placed the files in appropriate folders inside the memory card.
But now, whenever we start the game, it shows "XAPK File Validation" error.
We have checked the game in different Android smartphones like Samsung Galaxy Core 2, Micromax Canvas Fire 2 and Lava Magnum, but the problem is still there.
So experts, please let me know how to solve this error. Since the size of this game is very big, we do not want to download it again from anywhere else.