: Power off the device and boot it into EDL mode. This is usually done by holding the Volume Up (or both volume keys) and connecting it to the computer via USB.
Many such tools claim to “backup NV data” – but instead, they upload IMEI, serial numbers, and Wi-Fi MAC addresses to remote servers, enabling device cloning or fraud. msm8x39downloadtoolexe work
) that allows users to create backups of existing partitions before flashing new firmware. License Authentication : Power off the device and boot it into EDL mode