Open the Qualcomm Flash Image Loader utility on your computer.

If you are running into specific errors during the process, let me know: What or message is the tool giving you?

: To use the loader, the device must be in EDL Mode (Qualcomm HS-USB QDLoader 9008). This is often achieved by holding specific volume buttons while connecting to a PC or using hardware test points if the device is soft-bricked. Flash Tool Requirements