Hi guyrandom please check in App Mgr Settings that you have Software Installation to All & Online Cert Check to Off. If it doesn't need changing you might have to format your phone & i dont mean *#7370# because that just deletes settings bookmarks contacts and stuff like that it doesn't delete the sys bin or private folders which can have apps and games folders in them that can stop a hack taking to the phone. If you have backed up all your data such as contacts images videos documents and internet settings and especialy your HelloOX app and if you have them your phones cer & key you can format the mem card first then your phone then install HelloOX and the hack should work. To format completely take out the sim card first and your mem card after you've formated it in your phone or it wont work in it again just make sure you dont put a new card name just save the one it gives you after formating. Now to format your phone completely leave it turned off then just press Green button / star button * / 3 button / power button. Keep them all pressed at the same time until your phone asks for country and its formated. Then put your sim back in and your mem card and then install HelloOX.