On our board(MX6DL) we ported DDR on Android 5.0, and the board can not install APK,when installing, it will crash. But the same porting copy on Android 4.2, all is perfect. So Could you give me some explaination? Could I contact with FSL DDR RD to talk about this complicated problem? Could you give me the password about the porting xls? I need to know how my DDR parameters transition to DDR porting copy. And when encountered this problem, how to regulate my DDR porting?