These programmers are often leaked from OEM device repair labs. While the reason of their public availability is unknown, our best guess is that To make any use of this mode, users must get hold of OEM-signed programmers, which seem to be publicly available for various such devices. All of these guides make use of Emergency Download Mode (EDL), an alternate boot-mode of the Qualcomm Boot ROM (Primary Bootloader). There are many guides across the Internet for ‘unbricking’ Qualcomm-based mobile devices.
