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How do I use a fastboot device with ADB?
To flash a device:
- Place the device in fastboot mode by holding the appropriate key combination at boot or using the following command: adb reboot bootloader.
- After the device is in fastboot mode, run: fastboot flashall -w.
If you hold down the power button until the phone shuts off, you can get out of fastboot mode. If you see only Chinese text on your screen, please select the top option, which will put you into English text, when the phone is off.
Do you need to reboot to Fastboot in ADB?
In order to use fastboot you need to boot to fastboot. If adb does list your device you can use adb reboot-bootloader to reboot to the bootloader (fastboot). Now you can see your device with fastboot devices
Why does Fastboot not work on my Android phone?
Try a different cable, different USB port. Fastboot can be finicky sometimes. You can also go to Windows Device Manager, find the device, and see if you can manually select the drivers. There is a generic Android device driver that sometimes gets fastboot to work properly on some of my past devices.
Why does Fastboot flashall-W not return my Device?
But when I enter fastboot devices nothing returns. adb devices is working. It return my device. fastboot flashall -w is also not working. I returns and stays like that until I exit. So the 70-android.rules.d file is right. I have also set ANDROID_PRODUCT_OUT. But someone knows why fastboot does not see my device, but adb does?
What should I do if my ADB doesn’t work?
Since adb is working, do an adb reboot bootloader and it’ll then boot into fastboot. If you can’t get a return on fastboot devices at this point, it could be you haven’t oem unlocked your phone yet. Since adb is working, do an adb reboot bootloader and it’ll then boot into fastboot.