mine aslo same problem, spoke to samsung abt this. they say this model does not support third party applications...samsung is cheating buyers with this useless phone...please dont buy this phone... mine aslo same problem, spoke to samsung abt this. they say this model does not support third party applications...samsung is cheating buyers with this useless phone...please dont buy this phone...

i gaive u ans first do jar file convert into jadand go to external memory then make a folder give name e.g game and put jat and jad file into the folder u want to download jad maker i gaive u ans first do jar file convert into jadand go to external memory then make a folder give name e.g game and put jat and jad file into the folder u want to download jad maker