V1.0 !!top!!: Qfl Qualcomm Flash Loader

: Put the device into EDL mode (often by holding volume buttons while connecting to a PC) to ensure it is recognized as a "Qualcomm HS-USB QDLoader 9008" port. Loading Files : Select Build Type : Usually "Flat Build".

Modern Qualcomm chips (Snapdragon 660 and newer) implement ARB. Flashing an older firmware with QFIL will increase the anti-rollback fuse (e-Fuse) on the device. Once incremented, you cannot revert. Some devices hard brick permanently if ARB check fails. Qfl Qualcomm Flash Loader V1.0