Help...some compatibility issue..i think

[Jonnykeblitz1995]

I downloaded ppsspp for my LG L70 dual sim (kitkat 4.4.2) some days ago.. to play nfs most wanted 5-1-0, burnout legends and others... the application works perfectly, it runs cube.elf file ..but refuses to run the games...the games are .iso files in 8 parts and an sfv file and an msinfo file... is the emulator not playing it since the game is in 8 iso files..or will it work if the sfv file is also added...or is it due to some other problem? there is a screenshot of what shows if i select one of the iso files...