If you are trying to fix a specific device, could you tell me: exact model of the phone? to the IMEI (did it disappear after an update or a drop)? Are you currently seeing an IMEI when you dial
SigmaKey is a hardware dongle-based solution that supports a wide range of chipsets from Qualcomm, MTK, and other manufacturers. qcn imei repair tool
Always backup your EFS/QCN before touching anything. If this goes wrong, you could permanently lose your hardware's ability to connect to a network. If you are trying to fix a specific