Can t find android device using adb devices command

Question

I am developing Android application on macOS and my application runs well on the emulator  I want to run it on the device  but when I run adb devices I get nothing   localhost platform-tools BF  adb devices  List of devices attached   localhost platform-tools BF    I have checked the documentation in the reference about  Setting up a Device for Development   I have done everything step by step   In the documentation  there are some words  Setup your system to detect your device  If you re developing on Mac OS X  it just works  Skip this step   Now  I can t find any solution  Does it need special drivers for Android Devices

User · Answer

If adb devices does not list the device though you have plugged it in to the system  you need to ensure that USB debugging option is checked in the Developer Options tab under Settings  Under Android 4 2 2 and above  from what I have observed   the Developer Options are hidden unless explicitly revealed  To make Developer Options active  tap 7 times on the Settings  gt  About device  gt  Build number  Once done  go back to Settings  gt  Developer Options and activate USB Debugging    Using adb version 1 0 31  I was able to make the device visible

User · Answer

The same problem I had on Windows 7  It happened that I was using USB tethering feature alongwith trying to use adb  There are some workarounds for this Usb tether and debug at the same time

User · Answer

I know this thread is old  but I think this could still help  Almost all the time  it just works  on OS X  but sometimes new prototype or obscure devices aren t picked up  Try to help it out with these steps  I m not near my Mac right now  but I did this last night and think I remember     Open System Profiler and find the device on USB  View it s details to find the Vendor ID  For example  Motorola devices will show 0x2bb8  Or just Google for your vendor s hardware id    If nothing shown  make sure to try different cables  Android File Transfer is good for detecting the device if you have a valid cable  Edit    android adb usb ini to include that Vendor ID  If the file doesn t exist  create it with that line only  Restart ADB   adb kill-server  adb start-server  Maybe unplug plugin your phone    And hopefully you see your device

User · Answer

On Mac Lion    I just had to go to  path to android-sdk tools and run android adb update for the devices to be detected

User · Answer

I had this problem today where the phone was charging when connected  but wasn t seen by the Mac  It turned out the micro USB cable that I was using was for charging only and didn t do data  Once I changed the USB cable it started working fine

User · Answer

Are you by any chance also using the app EasyTether while connected to your Mac   If you happen to use this app  you re in luck  because the solution is to call   sudo kextunload -v  System Library Extensions EasyTetherUSBEthernet kext   from a terminal   I forget if you have to reboot or not   This will disable tethering  but you can now see your device via adb   To renable tethering once you re done debugging  use   sudo kextload -v  System Library Extensions EasyTetherUSBEthernet kext   Of course  if you re not using EasyTether  then hopefully someone else has an idea

User · Answer

I was having this problem  It turns out my fix was to change the USB cable I was connecting with  I switched back to using the cable that came with the phone and it worked   Using Samsung Galaxy Player and Samsung micro USB   Yes  This is incredibly dumb

User · Answer

If you re struggling with such an issue using Lollipop  Android 5    probably you guys should do one simple step that I d done before my ADB  I use Ubuntu  got my phone   Change USB PC connection type to  Send images PTP    before I ve been using  Media device MTP     Just like this     And don t forget to activate checkbox  USB debugging

User · Answer

If using adb devices on Mac OS X no device is displayed and  of course  you have enabled the USB debugging on your device  see http   developer android com tools device html   then try with     android update adb adb has been updated  You must restart adb with the following commands     adb kill-server     adb start-server   Then     adb kill-server   adb start-server   daemon not running  starting it now on port         daemon started successfully     And finally     adb devices List of devices attached          device   Your device should be now in the list

User · Answer

Same problem here  osx 10 6 6 and adb devices giving      adb devices List of devices attached     empty      Rebooting the phone didn  t help although it was listed with adb devices just for a second during the booting process    Debugging was turned on in adroidsettings- applications  What finally made it tick  turning debugging mode off and on again

User · Answer

make sure you have same   higher API level installed on SDK packages with your devices   example    I have Android 2 3 4 on my Xperia Play  ADB wouldn t detect my device if theres only API 10  Android 2 3 3  installed on my Mac  When i installed SDK 11  Android 3 0  -- since I didn t found any SDK package for 2 3 4  the ADB working fine   hope this help you

User · Answer

You will need USB driver installed correctly and have debugging enabled in settings  if these dont work there could be something wrong with your device   Also see this

User · Answer

restart the adb server works for me  in emulator  vmwware and virtual   adb kill-server adb start-server   if you  re using a virtual machine  make sure you have an IP assigned with   Alt   1 type  netcfg   to go back   Alt   7   if you have    eth0  DOWN 0 0 0 0 XX   change your configuration to   NAT or BRIDGE   Restart the virtual machine and server  and tried again   if you  re using a phone or tablet    unplug your device wait a moment and plug it again and restart the adb server   Hope this help you

User · Answer

I had Xamarin installed and tried to use Unity  Basically in any case you have to kill any application that might be talking to your device through ADB

User · Answer

Referenced from this link   THIS IS FOR A MAC ONLY   Here   s what you need to do to make your phone visible to adb    Open terminal  Applications Utilities Terminal  cd  System Library Extensions IOUSBFamily kext Contents PlugIns IOUSBCompositeDriver kext Contents sudo nano Info plist  or vi  or emacs  or whatever console editor you prefer  Copy the IOUSBComposite section  from  lt key gt  to  lt  dict gt   Paste the section in at line 66  right after where it appears  so you have 2 copies in the file Change the bDeviceSubClass value from 0 to 2 Change the key name from IOUSBComposite to GW620     The end result should look something like this                        lt key gt GW620 lt  key gt                       lt dict gt                               lt key gt CFBundleIdentifier lt  key gt                               lt string gt com apple driver AppleUSBComposite lt  string gt                               lt key gt IOClass lt  key gt                               lt string gt IOUSBCompositeDriver lt  string gt                               lt key gt IOProviderClass lt  key gt                               lt string gt IOUSBDevice lt  string gt                               lt key gt bDeviceClass lt  key gt                               lt integer gt 0 lt  integer gt                               lt key gt bDeviceSubClass lt  key gt                               lt integer gt 2 lt  integer gt                       lt  dict gt       sudo diskutil repairpermissions   and let it finish sudo touch  System Library Extensions and wait a few mins for the extension reindexing to finish adb devices should now see your phone   Note  this is VERY kludgy  and will probably break every time OSX updates itself  but it works  I can finally stop rebooting every time I want to work on the phone   D

User · Answer

Just because your Android device is in Developer Mode  doesn t mean it has USB debugging enabled   Go into Settings   Developer options then enable  USB debugging  and then you should see your device  It s a common mistake that s easily overlooked

[android] Can't find android device using "adb devices" command

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