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Android device not detected in ADB but can reboot it BRICKED

Discussion in 'Android Devices' started by Rasil1127, Jul 3, 2021.

  1. Rasil1127

    Rasil1127 Lurker
    Thread Starter

    I have a weird problem, I have a Huawei P30 Lite that is bricked when I tried to downgrade and skip the google email in the setup. The screen doesn't turn on but when the battery is very low the notification light blinks. So when it plugged into the pc the computer makes a USB input sound and when I take it out it makes a USB output sound. So I downloaded all the drivers ADB and everything but if I type ADB devices it shows nothing but when I do fastboot reboot it restarts the phone because the pc makes a USB input and a USB output sound. My end goal is to unbrick this phone I desperately need someone smarter than me, please!

    Is there any way I can unbrick this phone?
     



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  2. Hadron

    Hadron Smoke me a kipper...
    VIP Member

    "Bricked" is a vague term, which means different things to different people, so doesn't really help us much. Tell us how you tried to downgrade and at what point in the process it failed and we'll have a better idea what is likely to be the problem.

    However, the fact that it responds to fastboot is significant. The phone will only respond to ADB commands if it is booted into Android and USB-debugging is enabled, or else running a custom recovery with an ADB daemon. Conversely it will only respond to fastboot commands when booted into a particular mode (fastboot mode or download mode, depending on what phone you have). There is no mode in which it will respond to both. So the fact that it responds to "fastboot reboot" suggests that it's booting into fastboot mode rather than android, which implies to me that the system software was so badly damaged that it won't even boot into recovery (or maybe that whatever key(s) you press on that phone to boot into fastboot mode are stuck - I have seen that happen to some phones). If you flashed the wrong firmware or interrupted a firmware update this is possible.

    So my best guess is that you'll have to reflash the phone's firmware. The good news is that on the phones I am most familiar with (HTCs and Pixels) fastboot mode is where I'd want to be to do that. But I don't know the tools or procedures for a Huawei.

    But one more question: what exactly do you mean by "skip the Google email in the setup"? When I first read that I assumed you meant when configuring the phone after booting into Android, but if you had managed to boot it I can't think how you could get into this state. The other possibility is trying to bypass factory reset protection, but the way to do that is to remove the account before resetting the phone.
     
    ocnbrze likes this.
  3. James L

    James L Android Expert

    Get a SD card, I'll try to post the rest sometime later, a quick internet search or a look on the forums here might be faster though. I'd hate to post the wrong info even though I'm pretty sure I know the answer.

    It's been quite awhile lol.
     

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