just had this problem yesterday when i downloaded games from the mobile section.. everytime i try to install a file, may lalabas na message na "INSTALLATION SECURITY ERROR. UNABLE TO INSTALL".. ano kaya problem nito?? n70 po fone ko.. thanks po sa magrereply!! gud morning!

Bro punta ka menu->applications manager-> settings-> software installation set to on & online certificate check off. Done :lol:

ah ganun lang pala! thanks po!!!