Android device does not show up in adb list

Question

I have a HP Slate 21 that is connected to my Windows box using a USB cable  USB debugging is enabled on the device  After adding the proper  SingleAdbInterface  and  CompositeAdbInterface  entries to the android winusb inf file  I now see  Android ADB Interface  in my Device Manager  However  running adb devices at the command-line does not show the device   I have another HP slate 7 that shows up just fine under adb devices   The only difference I see from Device Manager is that the one that works is named  Android Composite ADB Interface  and the other one is named  Android ADB Interface    There is yet another subtle difference  In the winusb inf file  for Slate 7 I have two  CompositeAdbInterface  entries defined but for Slate 21  there is just one  CompositeAdbInterface  entry defined   What could be wrong with my setup

User · Answer

Toggling USB debugging off and then back on did the trick for me

User · Answer

I tried all the options in the answers above   switch debug mode off    and on    made USB config - charging made stay awake   None worked   For my samsung J7 mobile  downloaded the USB driver  post installation   device started showing in adb devices

User · Answer

Make sure your device is not connected as a media device

User · Answer

After trying all the solutions and still not finding a solution  I deduced the problem to the USB cable s    Since it was working sometimes for me  ie at work  and not other times  ie at home   I decided to try out different cables and different Android phones I had  And sure enough  some of the cables did not work  adb can t see phone  with any of the phones  but they still charged the phone and Android recognized that it was plugged in   The good cables obviously charged the phones and were immediately recognized by adb  It was a pretty clear difference   I couldn t tell the cables apart physically from outside  but all were free USB cables I ve gathered over the years

User · Answer

In your windows configuration  go to device management  Check if you see your device and if the drivers are installed  You probably do not have the correct drivers installed for your device

User · Answer

In Galaxy s6 - I resolved it by  Settings -  About device -  Software info -  Build number - tap it 7 times to enable Developer options  Go back to Settings -  Developer options -  turn on USB debugging   Go back to your terminal adb devices and you should see the connected device  Hope that helps

User · Answer

For me the solution was to use a different USB port on my laptop

User · Answer

For what it s worth  I had problems getting the ADB driver installed from my Windows7 machine  Turned out the Virusscan  access protection  prevented  only some  drivers to be installed properly  Unplugged USB  uninstalled the samsung device from device manager  disabled VS access protection  plugged usb back in and everything was OK  Wasted an hour  hopes it saves you one

User · Answer

On Android 7 1 Nougat  in my case  a Moto G   manually re-enabling USB debugging on Developer Options did the trick   Settings   Developer Options   USB debugging    PS C   gt  adb devices List of devices attached myDeviceNumber      device

User · Answer

While many of these solutions have worked for me in the past  they all failed me today on a Mac with a Samsung S7  After trying a few cables  someone suggested that the ADB connection requires an official Samsung cable to work  Indeed  when I used the Samsung cable  ADB worked just fine  I hope this helps someone else

User · Answer

I was having same problem in my ubuntu  When I run command adb devices it shows me            No permission    Then I tried with adb kill-server and then sudo su and adb devices  No need to run command adb start-server devices command will start it automatically if it is not already started   Hope this will save once one s minutes

User · Answer

I tried everything on this thread but nothing worked  My problem  my computer was charging the device when I was connecting the cable on  so I assumed the cable was working  but not  After I swap the cable  adb devices worked  The cable was the issue

User · Answer

Same as other android devices  a new Yuntab also requires going to settings   about and tapping on the build number to enable developer status

User · Answer

I had similar problem with my  Xiaomi Redmi Note 4  and tried almost 10 solutions I found over internet  but none of them helped my case  I ve posted this answer to help someones like myself   Installing  Intel USB Driver for Android Devices  totally solved my problem  It s described completely here

User · Answer

Click on Attach Debuger to Android Process and Click On Restart ADB

User · Answer

Disable and re-enable  use debug mode  on your telephone

User · Answer

I had a similar issue and solved with the following steps after connecting the device via USB    turn on developer options on the android device   enable check box for stay awake  enable check box for USB debugging  open cmd got to platform tools adt tools here https   developer android com studio  adb kill-server adb start-server adb devices   Now we can see attached devices

User · Answer

Tried off on developer usb options  but turns out swopping for another cable worked  Just in case someone waste time trying everything software

User · Answer

Remove battery from phone  wait 10s  re-add it and try it again  alongside developer options etc   in other questions   I tried all other answers  but that was required in addition to the other suggestions for me

User · Answer

Try to update the ADB and the phone itself  Then if it still doesn t work try to connect the phone with then without usb debugging  or with then without usb storage on

User · Answer

I have an Android LG G4 and the only thing that worked for me was to install the Software Update and Repair tool from my device   Steps    Plug device into usb Make sure developer options are enabled and usb debugging is checked  see elsewhere in thread or google for instructions   Select usb connection type  Software installation        An installation wizard should come up on the computer  At some point during the installation you will see on your phone a prompt that asks  Trust this computer   with an RSA token fingerprint   After you say yes the device should be recognized by ADB and you can finish the wizard

User · Answer

just try adb kill-server then  adb devices

User · Answer

For WINDOWS users  Follow the instruction here  https   software intel com en-us xdk docs installing-android-debug-bridge-adb-usb-driver-on-windows  Basically  MTP PTP all is not needed  You need to configure your device from device manager by following the instruction in screenshots of the page   Hope it helps

User · Answer

for me the solution was to install de driver from sdk manager   http   visualgdb com KB usbdebug-manual

User · Answer

Turning on tethering actually allowed me to install and debug on a LG device and it was the only way it would work

User · Answer

adb was not detecting connected nexus 5 device  Switched on the phone  enabled developer options  Enabled USB debugging mode  Now visible with adb  Also  USB configuration is still MTP  Hope this helps

User · Answer

I also had same problem  i tried to use all the possible solution posted on this thread  but i found out i had same problem as JohnnyFun explained  but as per HenrikB solution i could not find any settings option in my Samsung Galaxy S6 phone   Android 6 0 1    Settings -  Storage -  menu -  USB computer connection  I finally figure - when connecting my phone throught charger in pull down menu i see options like -     Then click on  Connected for chargin       you will see options like        Over there you can change option to  Transferring media type files

User · Answer

So the methods mentioned above didn t work for me  What worked for me was googling Samsung Galaxy Tab USB driver and downloading and running the application that got my device recognized when I did adb devices  Since I was using a Samsung Galaxy  I used this link to download the usb driver from the OFFICIAL Samsung site  You would want to google your own respective android model usb driver  http   www samsung com us support owners product SCH-I925EAAVZW  After downloading it  I ran the application to install my usb driver and then did adb devices  Make sure your Google USB driver from the Android SDK is downloaded and that your sdk is up to date as well  Also  make sure that your USB debugging mode is enable by going to Settings -  Developer Options -  then checking USB debugging  After all this  your device in the Device Manager should not have a yellow exclamation point next to it  When you run adb devices your device should show up  Hope this helps people  I literally spent hours trying to figure this out  Hopefully my answer could save you guys the hours I spent googling

User · Answer

In Android 8 Oreo    go into Settings   Developer Options   Select USB Configuration  Select PTP  Picture Transfer Protocol

User · Answer

Looks like the installed driver was in bad state  Here is what I did to make it work    Delete the device from Device Manager  Rescan for hardware changes  List item  Slate 21  will show up with  Unknown driver  status  Click on  Update Driver  and select  extras google usb driver   Device Manager will find the driver and warn you about installing it  Select  Yes   This time the device got installed properly   Note that I didn t have to modify winusb inf file or update any other driver   Hope this helps

User · Answer

Have you ever reset the adb after you installed the new device     Or from command line    Close Eclipse if running   Go to the Android SDK platform-tools directory in Command Prompt  ok  you knew this  i know   type adb kill-server then type adb start-server Read if there are some errors otherwise try adb devices again

[android] Android device does not show up in adb list

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