Power off your device and connect it to your PC while holding the specific "boot buttons" (usually Volume Up + Volume Down) to enter EDL mode.
Revive "hard-bricked" phones that no longer power on normally but are still recognized by a PC as "Qualcomm HS-USB QDLoader 9008". qfl tool 2021
Capture existing firmware partitions or QCN files (containing critical network information) before making major changes. Power off your device and connect it to