Android Device not recognized by adb

Question

My Android device isn t recognized by eclipse nor adb anymore  My OS is Windows 7 64-bit  and I m using a Nexus 4 with Stock Android 4 4 2   Here are some details on the problem    Yesterday I could run Android Projects from eclipse on my device with no problems  The only thing that I did on eclipse  which could have caused this problem  was installing the v7 appcompat support library from a resource to eclipse using this guide on developers android  https   developer android com tools support-library setup html   The device is still recognized as a normal multimedia drive in Windows when it s not in debug mode  The device is in Developers mode and in Debug mode when I try to run an Android Project in eclipse or try to see if it s recognized by adb using adb devices in the console  The Google USB drivers have been installed through the ADK Manager The USB OEM drivers for Windows have already been installed according to the tutorial on the android-developers site   see  https   developer android com tools extras oem-usb html  I tried to restart adb by using the commands adb kill-server and adb start-server  and again checked if the devices was recognized by using adb devices  The device was still not listed on the console  Restarting windows  amp  eclipse did not fix this problem    Does anyone know a solution for this problem  Thanks in advance   UPDATE  Thanks for the repies  the problem is solved  for now   I tried the following suggestions in this order    I restarted my device - this did not fix the problem I set my device to PTP mode - this fixed the problem    So I reset my device to MTP mode  amp  debug mode again to check if it still would be recognised by adb for some reason  It definitly doesn t get recognised by adb when it s in MTP-mode  I don t know how it got recognised some days ago  because I never setmy device to PTP-mode  Anyway  the solution to my problem is that my Nexus 4 must be in PTP-Mode and of course in debug-mode to get recognised by adb   I didn t try any other suggestions since my problem got solved with my current drivers

User · Answer

Enabling Developer mode by tapping on Build Number 7 times worked for me

User · Answer

It may sound silly but in my case the USB cable was too long  even if good quality   It worked with my tablet but not with the phone  To check this  if you run on Linux run lsusb to make sure that your device is at least officially connect to the usb port

User · Answer

Generally  I think your USB connection should be set to use MTP  Media Transfer   however  I couldn t get my computer to recognize my device  Nexus 4   Oddly  setting the USB connection to Camera got it working for me

User · Answer

I also faced the same problem and tried almost everything possible from manually installing drivers to editing the winusb inf file  But nothing worked for me   Actually  the solution is quite simple  Its always there but we tend to miss it   Prerequisites  Download the latest Android SDK and the latest drivers from here  Enable USB debugging and open Device Manager and keep it opened   Steps  1  Connect your device and see if it is detected under  Android Devices  section  If it does  then its OK  otherwise  check the  Other devices  section and install the driver manually   2  Be sure to check  Android Composite ADB Interface   This is the interface Android needs for ADB to work   3  Go to   SDK  platform-tools   Shift-click there and open Command Prompt and type  adb devices  and see if your device is listed there with an unique ID   4  If yes  then ADB have been successfully detected at this point  Next  write  adb reboot bootloader  to open the bootloader  At this point check Device Manager under  Android Devices   you will find  Android Bootlaoder Interface   Its not much important to us actually   5  Next  using the volume down keys  move to  Recovery Mode    6  THIS IS IMPORTANT - At this point  check the Device Manger under  Android Devices   If you do not see anything under this section or this section at all  then we need to manually install it   7  Check the  Other devices  section and find your device listed there  Right click -  Update drivers - Browse my computer     -   Let me pick from a list     and select  ADB Composite Interface    8  Now you can see your device listed under  Android Devices  even inside the Recovery   9  Write  adb devices  at this point and you will see your device listed with the same ID   10  Now  just write  adb sideload  update  zip  and your are done   Hope this helps

User · Answer

Set your environmental variable Path to point to where the adb application is at   directory of sdk folder  platform-tools

User · Answer

Check that the USB cable is indeed capable of transferring data  Some cheaper ones  especially those meant to charge non-phone computer devices  might only support charging   You can verify this by checking if the device shows up as mountable file system  In Linux  you can also use the command lsusb to check if it s being detected

User · Answer

Download and install Moborobo software on your computer   Connect your device with USB debugging through USB cable   Now open moborobo and it will connect to your android   Stay connected  now your device should recognize as adb devices and get listed

User · Answer

For those people to whom none of the answers worked     try closing the chrome   inspect  devices tab in chrome if opened    This worked for me

User · Answer

Try use PdaNet  you can download it from here  It installs missing drivers when you plugin your device   Obviously make sure you  debug usb  option in  developers options  is on   Another thing  it s important to uninstall any device s installed driver before using it

User · Answer

Fundamentally  the issue has to do with not being able to get MTP ADB working while for example PTP ADB may work  In my case when I plugged Nexus 5  windows 7 will install only MTP driver completely ignoring ADB  I couldn t find a good solution for this problem anywhere else so here I provide steps  some of the steps I copied from other sources    0  Unplug Nexus 5  Make sure you selected MTP and ADB   1  Make sure that sdk extras google usb driverandroid winusb inf in Google SDK had the following lines  in two places in that file     Google Nexus  generic    CompositeAdbInterface        USB Install  USB VID 18D1 amp PID 4EE2 amp MI 01  NOTE  VID 18D1 is Google VID  PID 4EE2 is PID for MTP ADB  MI 01 means that ADB is on interface 1  MTP is on interface 0    You can check what is on what interface by plugging Nexus 5 into a Linux system and typing lsusb   2  first delete all installed Google USB drivers  One good tool is called USBDeview and can be find at the following location  http   www nirsoft net utils usb devices view html Download the tool and run it  there is no need to install it   Take a look at the colored status indicator on the far-left of the USBDeview window  Green indicates the the device functions properly  Pink means the device can unplug and works properly  although it may not actually work properly   Red indicates a disabled USB device  Gray  circled  below  means the device is installed  but not connected  Second  remove all gray items with the words    Google        Linux        ADB     or    Android    in the title   3  Now delete old cached Google   inf files  Open a Windows Explorer and navigate to the C  Windows INF directory  Somewhere in there there is an  oemN inf  file  where N is a number that will vary on your system  that is a copy of the android usb inf -- the thing to do is to find which file and remove it  Windows keeps a cache of the INF files here and what we found is that sometimes an older cached copy is used instead of a newer version   One simple way to find which one using the Windows Explorer  - In the explorer s Search box  enter  androidwinusb86 cat  without the quotes  - Typically the search will be empty because no filename has this pattern  - Go to Tools Folder Options  click Search Tab and click Always search file name and contents  Click Apply - Search again  This time it should list a few files such as  oem90 inf   you ll have one or more  with different numbers    Now use the Windows Explorer and delete the  oemNN    files that matched above  only those with androidwinusb in them     4  We now want to disable installation of MTP by windows before windows discovers ADB  Now search for wpdmtp   files in the same directory  Presence of these files will force install MTP disregarding ADB class in the same  composite  device  Move these files out of  inf folder  5  plug in the device again   This time  both MTP and Android ADB driver installation will fail    6  Find Other devices in the Device Manager and when expanded it should show Nexus 5 and MTP  Right click and update Nexus 5 by navigating to the sdk extras google usb driver android winusb inf   Move wpdmtp   files back to  inf folder  Right click MTP device and update   7  If necessary  confirm on your Nexus 5 that this PC has access to the phone   8  If everything went as expected you should see in Device Manager the following    Expand Android Device  Right click Android Composite ADB Interface  select Properties  choose tab Details  under Property select Hardware Ids  You should see USB VID 18D1 amp PID 4EE2 amp MI 01 Expand Portable devices  Right click Nexus 5  select Properties  choose tab Details  under Property select Hardware Ids  You should see USB VID 18D1 amp PID 4EE2 amp MI 00

User · Answer

With USB connected  on android device Settings   Developer options   Revoke USB debug authorizations USB Debug  Remove the USB and connect again  then  Allow USB debugging

User · Answer

I recently had this issue  but before that debug over wifi was working fine  and since none of the above answers helped me let me share what I did   Go to developer options Find Select USB configurations and click it Choose MTP  Media Transfer Protocol   Note  If it s set to this option chose another option such as PTP first then set it to MTP again  UPDATE  PTP stands for    Picture Transfer Protocol     When Android uses this protocol  it appears to the computer as a digital camera  MTP is actually based on PTP  but adds more features  or    extensions     PTP works similarly to MTP and is commonly used by digital cameras

User · Answer

Make sure you are connecting with a USB and not a lightning cable  I had this problem trying to connect using a cord with lightning cables on both ends and it would not list the device  But switching to a USB to lightning cable worked

User · Answer

Find drivers for your device and install them That will be the end of your device not detected problems Windows have driver problems  sometimes messed by overriding the existing driver   You can also try uninstalling driver from Win7 and reinstalling

User · Answer

Go to prompt command and type  adb devices   If it is empty  then make sure you allowed for  MTP Transfer  or similar and you enabled debugging on your phone   To enable debugging  follow this tutorial  https   www kingoapp com root-tutorials how-to-enable-usb-debugging-mode-on-android htm  Then type  adb devices  again  If a device is listed in there  then it should work now

User · Answer

For those facing problem after upgrading their android device to android 10  same PTP Mode option will work as prescribed by user3135185

[android] Android Device not recognized by adb

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