Since the Lumia 650 runs Windows 10 Mobile (now discontinued), I’ll design this as a that could have been added via a system update or a custom app.
is showing nothing but a black screen or won't boot past the splash logo, you’ve likely entered the dreaded "bricked" territory. To fix this, standard recovery methods might not be enough—you’ll need (.EDE and .EDP) to rewrite the bootloader and bring the hardware back to life. What Are Lumia Emergency Files? lumia 650 emergency files top
Emergency files serve as a bridge to restore the device to a state where standard flashing tools, like the Windows Device Recovery Tool (WDRT), can recognize it again. Since the Lumia 650 runs Windows 10 Mobile
from a hard brick (often appearing as QHUSB_BULK in Device Manager), you typically need two specific file types along with your device's firmware: What Are Lumia Emergency Files
files) required to revive a "bricked" device that has entered Emergency Download (EDL) Mode