SM-N915T Need Imei Patch May 02, 2015 -->dialup *#9090# -->rigth coner MENU + choice Back -->rigth coner MENU + input Q -->rigth coner MENU + input 0000 wait about 10 sec display For'MAIN MENU' Now UE SETTING & INFO >SETTING >SYSTEM >NV BACKUP TEST >ERASE ALL EFS 1/2/3 >YES Read more