By following this guide, you should see those 15 digits reappear on your screen, and your OPPO CPH1937 will reconnect to your cellular network like the day you bought it.
: The modified or original QCN file is flashed back to the device to restore network functionality. New Oppo One Click IMEI Repair With DTPro Tool New Oppo One Click IMEI Repair With DTPro Tool YouTube·UFixer oppo cph1937 imei repair