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Device in Fastboot mode not recognized at all as USB device

 1 year ago
source link: https://forum.xda-developers.com/t/device-in-fastboot-mode-not-recognized-at-all-as-usb-device.4242609/page-2#post-88663189
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Device in Fastboot mode not recognized at all as USB device

holgers0n

New member
Hey everyone,
im trying to unlock the bootloader of my LG G5, but am unable to do so as the phone is not detected at all when in fastboot mode.

While it is recognized just fine as an adb device, after rebooting into fastboot mode via adb reboot bootloader it is not recognized as an USB Device in Windows (The device manager does not show any device with wrong drivers and does not react to replugging the device). I also tried it on a different machine with the same results.

Ubuntu also does not recognize the device at all, lsusb does not output the device anywhere. It also does get recognized as an adb device when booted up normally.

I installed the necessary (I tried LG and Google) drivers and tried different USB ports (2.0 and 3.0) and cables. The phone just is not noticed as an usb device at all when in fastboot mode.

Could this be due to a broken usb port? Which seems odd because the phone is recognized when not in fastboot mode.

What else could cause this weird behaviour?

Thank You!

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