tried and tested ..................
Install the 4.4.2 rom on your phone :N750XXUCNH2_OXECNH1_v4.4.2_Repair_Firmware thiss
Select model C111 and perform imei repair
Select model t311 and perform patch certificate
100% LIVED AND RESULT RECEIVED : D: D: D: D
Install the 4.4.2 rom on your phone :N750XXUCNH2_OXECNH1_v4.4.2_Repair_Firmware thiss
Select model C111 and perform imei repair
Select model t311 and perform patch certificate
100% LIVED AND RESULT RECEIVED : D: D: D: D