for repairs, EDL mode allows for direct flashing of the device's storage (UFS/eMMC) when the standard bootloader is inaccessible. Entering EDL Mode : On a functional device, you can try the command adb reboot edl
If you plug your Pixel 6 into a PC and it shows up in Device Manager as "QUSB_BULK_CID" or a generic "USB Serial Port" without any screen activity, it is in this recovery state. Recovery Methods for Bricked Pixel 6 Devices pixel 6 edl mode
In plain English: You cannot simply plug in a "dead" Pixel 6 to a PC, install Qualcomm drivers, and flash a rescue image. Google does not want consumers or repair shops accessing this mode without proprietary tools. for repairs, EDL mode allows for direct flashing