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Basically I have a Moto X4 without USB debugging enabled and the start button doesn't work. I can boot up to AP Fastboot (the screen with the little droid in the background), but I don't have USB enabled, so when I connect the phone via USB cord to my laptop, ADB won't recognize it (so I can't reboot using ADB).

Is there anything I can do!? I don't want to do anything "security sketchy" here: just start it up to get to the point where I can enter my password/use fingerprint ID.

Would an OTG adaptor work!?

Joshua Isralowitz
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  • How do you manage to make the device boot without a working power button? – Robert May 18 '21 at 21:10
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    I input the charging cord and simultaneously hit the volume button. Both volume buttons work. – Joshua Isralowitz May 18 '21 at 21:25
  • you don't need usb-debugging for fastboot commands. install bootloader interface drivers and fastboot reboot – alecxs May 18 '21 at 21:52
  • Thanks. I'm trying to follow https://www.droidwin.com/install-google-android-bootloader-interface-drivers/ to do that. But, I run into two problems

    1. All I see in Device Manager is Motorola ADB Interface, and I get an error when I try to update using the Android USB Driver.

    2. When I go to a command prompt in the Platform-Tools folder, I get "List of Devices Attached" and nothing is listed. Also when I enter ADB reboot bootloader, I get "no devices/emulators found."

     – Joshua Isralowitz May 18 '21 at 23:00
  • Nevermind it worked! – Joshua Isralowitz May 18 '21 at 23:00
  • maybe interesting for you https://android.stackexchange.com/a/221384 – alecxs May 19 '21 at 06:09
  • Hi, looks like you've found the solution by yourself, which is great! Consider post it as a proper answer since self-answering is not only allowed, but even encouraged!. Thanks! – Andrew T. May 19 '21 at 10:28
  • I basically did what Alecxs suggested, so I don't think I answered it myself. It didn't seem to work prior though, as my phone wasn't being recognized by ADB. I guess maybe it was the wrong cord? I don't know. Because of this I was thinking I needed usb debugging to get my phone recognized – Joshua Isralowitz May 19 '21 at 16:46
  • you are mixing up adb with fastboot. adb is a different mode with different drivers and different program/protocol language. fastboot does not require usb-debugging at all. furthermore you can't start device from adb because adb only works on already running android (with enabled authorized usb-debugging). so the trick to power up was simultaneously input cable + volume down button (fastboot mode) – alecxs May 20 '21 at 08:57

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