Qualcomm Adb Fastboot Driver -

Used while the device is powered on or in Recovery mode. It allows for app installation, logcat viewing, and shell access [1].

"If you see a generic Android device, use the ADB driver. If you see a '9008' device, use the Qualcomm Diagnostic driver." qualcomm adb fastboot driver

One wrong driver—like the generic “CDC Serial” or “MTP”—and the device drops off the bus. The phone reboots itself after 10 seconds of failed handshake. You have to re-time the button combo (Volume Down + Power for exactly 7.3 seconds) to catch EDL again. Used while the device is powered on or in Recovery mode