It is highly recommended to download the tool and firmware from official sources or trusted repositories to avoid malware-infected versions. How to use Qualcomm Flash Image Loader (QFIL)
Before using a Qualcomm flash loader tool, ensure you have the following, as mistakes can lead to permanent hardware damage ("bricking"). Qualcomm Flash Loader V1.0
If the phone still boots into Android, enable USB Debugging and type adb reboot edl in a command prompt. It is highly recommended to download the tool
Turn off your device. Use your preferred method (Hardware keys, ADB, or Test Points) to boot the phone into EDL mode. Connect it to the computer using your USB cable. Step 3: Verify the Connection ensure you have the following