I am trying to connect my Sprint L520 to CDMA workshop and seem to be getting no go on it. It is on Android 4.2.2 running stock unrooted ROM. The phone will show up in CDMA as the Samsung Mobile USB Serial Port but when I hit connect it connects but when I put the SPC which is not 6 zeroes (got it from MSL UTILITY) It says phone does not respond. any ideas? I am assuming there is somewhere another Hidden menu that is still disabled which I will need to toggle before I can successfully connect to CDMA. I got it on DM+Modem+ADB plus USB Debugging. Any ideas will be greatly appreciated!