Related
I'm trying to test an Android application and have a device connected via USB. The device detects (and charges off) the USB connection but I can't seem to find any record on the computer (running Windows 7) that the device is connected. I looked in Device Manager and did not see an "Android Devices" category, nor did I see an "Other Devices" category. I looked on the device manufacturer's website to see if they had drivers; I could not find any. Does anyone have any idea as to how I could get the device to show on the computer? Thanks!
Most probably windows and especially android adb will see your android device after installing the Google USB Driver
I had the same problem for many of my android devices and most of them are running fine with the driver from google. Only for some sony devices I had to install special drivers.
In Android Studio go to Tools -> Android -> Android Device Monitor. Once it opens close it, this will reset your adb and you should be able to see your device
Your problem sounds related with drivers
the Google USB Driver works only for some android models, some other drivers are installed as plug and play but some others you have to install manually.
http://developer.android.com/intl/es/tools/extras/oem-usb.html
Also sometimes it happened to me that the adb didn't recognize the device while the screen was locked so you could also check that out.
It turned out that the USB cable I was using was a charge-only cable. After switching the cable out, the device showed on ADB.
For several weeks, I was able to connect my Nexus 7 2 to my computer running Windows 7, and Eclipse would recognize it, allowing me to run apps on it. The device also showed up when I ran the adb devices command. Every time I plugged the Nexus 7 into the computer, the tablet asked if I wanted to allow USB debugging at that time. (Oddly, it never asked me whether I wanted to always allow it from that computer, but I didn't care.)
I recently updated the tablet to Android 4.4.2. I also updated the Android SDKs through the Android SDK manager. Now, when I plug the tablet in, I do not get prompt about USB debugging on the tablet, and neither Eclipse nor adb can see that it is there.
Here is a list of things I tried to do, gathering ideas from various forums around the web.
Re-download the Asus drivers for the Nexus 7 and update the driver. However, Windows does not even recognize this as the right drivers for this device.
Turn USB Debugging off and on on the tablet, and also revoke all USB debugging permissions.
Change the connection mode from media device to camera
Switch the runtime from Dalvik to ART
Type adb kill-server followed by adb start-server in the command line
Delete eclipse and all the Android SDK and download them all over again
None of this worked. Any other ideas on what to try?
It turns out that the Nexus 7 definitely needs the Google USB Driver. Finding, downloading, and installing this driver worked perfectly.
Because Google's Android OEM drivers page does not include the Nexus 7 in its list of devices that need the Google USB driver, I had been trying the driver from Asus, which did not work. I did not try the Google USB driver because for some reason my SDK manager said it had downloaded the driver, but the driver was not to be found.
Finally I found I could download the Google USB driver from this page, which clarifies that all Google Nexus devices need this driver. Now I have successfully re-connected the tablet to ADB.
I submitted a documentation bug report to Google here in hopes that the OEM drivers page can be updated to reflect that all Google Nexus devices need the Google USB driver.
Nexus 7 tablet with Android 4.4.4. Settings > Storage > USB Computer Condition.
Two checkboxes: MTP and PTP. Uncheck both.
With your phone disconnected
In windows explorer - right click computer, go to manage, in computer management find and uinstall device driver (under Android device)
Download new drivers from http://developer.android.com/sdk/win-usb.html#top
Connect the phone, windows will try to install new drivers, install drivers manually with drivers downloaded as above
The above worked for me
For me, after updating to Android 4.4.2, it was critical that I connected the device as a Camera (PTP) rather than as a Media Device (MTP). Previously, before the update, I was able to connect as a Media Device (MTP).
The problem is that you have not all needed drivers (PC can recognise your phone like usb device but debugging would not work). I solved this problem in Android 4.4.4 by uncheking all items (MTP, PTP, UMS) from menu: storage->USB computer connections and than tick 'Media device(MTP). Now all works fine.
thank you Arthur, I found Nexus 7 tab not working even after unchecking or checking. Problem solved by unchecking USB Debugging (under developer options).. settings>Developer option> USB debugging. then check (put tick the MTP device):.storage->USB computer connections and than tick 'Media device(MTP)
Complete checklist:
Enable debugging onto the device
Select USB Connection as PTP (camera)
Install the driver from http://developer.android.com/sdk/win-usb.html
Before you try anything, make sure you update your Build related tools using your Android SDK Manager. Your adb might be outdated.
I am not able to install USB-driver from "sdk/extras/google/usb_driver" and also am unable to do so using an external driver for my Sony mt27i device.
Where can I get the correct drivers for my Sony mt27i device?
Hello user3059993,
try to fellow some sequence of steps.
1)Go to device manager
2)than Usb Device
3)Right click on your connected device and click on update driver
4)there will secondary option to browse the drive here give the path
of google usb driver
or
fellow this link-
http://developer.android.com/tools/extras/oem-usb.html
i think it will work after that,thanks
I would recommend to install SnapPea in your PC which detects most number of Android devices. I was having a Tablet from China whose drivers where not there, so even that was detected by SnapPea. It will automatically ask you to download SnapPea for mobile also. Its great to have only one installation for all drivers.
Please take a look on this docs
http://developer.android.com/tools/device.html
try the below steps
1.on the device reset debugger options.. this might work
or
1.go to "device manager settings"
2.select your device and "update driver"
4 select "browse my computer for device software"
5.select "Let me pick from a list of device drivers on my computer"
6.Select " Your mobile device MTP " from the popup or the driver related to your device.
This will setup your device again.. and will be ready to use
Using Ubuntu
you can try the following commands
adb kill-server
adb start-server
adb devices
These commands also work on windows command prompt
Install drivers from: http://developer.sonymobile.com/downloads/drivers/
To detect the device by adb, you need to set the device USB mode to Mass Storage Mode (MSC). See settings - xperia connectivity - usb connectivity
Android Studio 0.3.6
Fedora 18 3.11.7-100.fc18.x86_64
Nexus 5 Kitkat
Hello,
I have been using my Samsung Galaxy Tab 3 7.0 running Android 4.1.2 everything works fine with adb.
However, I have just bought a new Nexus 5 device, and when I do the following command adb devices it doesn't show my Nexus 5.
Under Android SDK Manager | Extras | Google USB Driver | status "Not compatiable with Linux"
Because I am running Fedora 18 if I need drivers what drivers for the USB do I need?
Because the Samsung works fine and I can deploy and run my apps, I think my setup is correct. So I am wondering if there is something wrong with my Nexus 5.
I have tried the following:
adb kill-server
adb start-server
Setting the Nexus 5 Camera PTP and media device MTP didn't work.
Many thanks for any suggestions,
I had a similar problem with my Nexus 4(Android version 4.4.2), it wasn't listed in adb devices.
Make sure USB debugging is enabled from device, and do the following on your PC:
Update Android SDK (Google USB Driver)
From PC Control Panel, System -> Device manager -> Right click Nexus 4 -> Update driver.
Set android-sdk-folder\extras\google\usb_driver as path to search, include subfolders checked.
If windows tells you that the driver is up to date, just uninstall the driver (right click on nexu4 -> uninstall driver) and start from step 2 again.
After that, open a cmd and type adb kill-server and then a adb devices, now it will include your device.
https://developer.android.com/studio/run/oem-usb.html
Follow these steps,
Enable Developer options in your device. To enable the developer mode, Settings->About phone, tap Build number option 7 times continuously
Go to Settings-> Developer options and Turn on USB debugging
Make sure you reconnected the device via USB and grant permission on the dialog that appears.
From the above steps it didn't work try this step, Go to Settings->Security and turn on Unknown Sources
What you need to do is this:
Settings | About Phone
Scroll to the bottom to build number.
Tap on build number about 7 times. Each time you will get a popup message saying you are x steps away from being a developer
When you get to the final step you will get a message saying now you are a developer
Go back into settings and you will see a new setting Developer options there you will see a lot of options for developers. Enable USB debugging
Re-connect you phone to the usb, and you should see you device under adb devices.
I hope this answer helps someone else.
This simple steps worked for me, I debug on my Nexus 5 and 5X devices on Windows 8.1.
The steps to follow are these:
1) Enable from Developers Options the Debug USB Mode
2) Unplug the device from the computer
3.1) Go to Settings → Storage, in the ActionBar, click the option menu and choose USB computer connection.
3.2) If you didn't find the 3.1) option then go to Settings → Developers Options → Select USB Configuration.
4) Select Camera (PTP) connection.
5) Plug the device and you should have a popup on the device allowing you to accept the computer's incoming connection, or something like that.
6) If it doesn't work try to toggle the Debug USB Mode in the Developers Options
Finally, you should see it now in the DDMS and voilà.
My windows solution:
Go here and download and unzip to an easy location:
http://developer.android.com/sdk/win-usb.html#top
Right click 'My Computer' or 'Computer'
Select properties
Select Device manager
Look for your device. It should have a yellow mark above it.
Click 'update driver software'.
select browse my computer for driver software.
select the usb_driver folder you saved earlier.
install it
and wala. magic.
For those who are still frustrated, if you are using the experimental ART runtime, try switching back to dalvik (in developer options on device)
Here is simple solution for Windows 7 and Nexus 5 on Android 5.
Download the Nexus 5 Drivers from http://androidhost.org/jelry
Extract the zip contents and place all files in a single folder on your desktop.
Connect your device to your computer.
Launch the Device Manager on your PC.
Now you should see the Nexus 5 listed in the hardware list.
Right-click the ‘Nexus 5′ line and then click on Update Driver Software.
Next, click the ‘browse my computer’ option.
In the new window click on ‘Browse…’ button.
Go to folder unzipped at step 2. Select the folder where you extract the USB Drivers. Click Next. – make sure to tick the subfolder box too.
Now, the Windows installer will search for Nexus 5 drivers, click Install when asked for permission.
Wait for the process to complete and then check the Device Manager list to confirm that the installation was successful.
Original: http://www.android.gs/download-and-install-google-nexus-5-usb-drivers-adb-fastboot/
Note: do not forget to enable USB debugging on your device :)
Something nobody has mentioned yet:
Some cables do NOT support data. I was sitting here wondering why my Nexus 5 was refusing to show up on OSX. It turned out I was using a cable that didn't support data.
I swapped to a different cable which did support it, and suddenly I was able to use USB debugging.
If anyone is trying to connect Nexus 5 to a formatted Windows XP then follow these steps:
Download and install media transfer protocol porting kit:
MTP porting kit
Download and install WMFDistributable-11 for XP:
WMFDist-11 XP
Download and install LG United Mobile Driver v3.10.1:
stackoverflow is not allowing to share more than 2 links, please google this.
Connect your device.
Go to Device Management
Right click on Nexus 5 and click Update Driver
Select Yes this time only
Select Install Software Automatically
Wait for sometime.. and enjoy transferring files
ADB and driver versions matter. The newer the device, the lower the chances of an older version ADB to work correctly.
Apps using their own ADB copy need to be updated or at least have their ADB updated manually.
When installing Helium / Carbon for instance, it uses an old / incomplete ADB. Newer devices might not link to the ADB server for this very reason.
What I'm writing here should work for any future devices on Windows and possibly *nix OSes.
First the systems must be prepared.
on Android:
activate developer mode, either from an app (like Helium, when prompted) or by accessing the about phone section, taping build number until the developer mode unlocks
in developer settings enable USB debugging
in security settings allow unknown sources
(when connected with USB cable) set USB connectivity to PTP mode (camera device, if so labeled)
in Windows:
uninstall older USB driver (with file removal) if there is one, but only when the device is connected and in developer mode, otherwise
that particular device won't be listed
install latest USB driver after the device has been plugged in and developer mode is active, the device will be listed as unknown or other in Device Manager; the drivers can be downloaded separately from Google Android support site, these are the same as vendor drivers, with only fewer ID's in inf file making the driver not being recognized for all Android devices
if the driver does not recognise the device, no problem, install it generically: Manual Install > Show All Devices > Have Disk > pick inf location of the Android USB driver and from the list select Android ADB Interface; there's not need to edit the inf by adding hardware ids, the end result is the same
each of the modes, PTP and MTP will have their own driver entry, so if the device asks for MTP, the same driver installation procedure must be followed, again
Once these steps are/were previously done correctly, adb must be tested.
If Android SDK was installed previously, open a command prompt where adb.exe is
and test the listing of the device.
adb start-server
IMPORTANT NOTE: This command will prompt the device to allow the communication between the computer it's been linked to on the first run. The prompt will also list an RSA key specific to the PC in question. Without this prompt on start-server, ADB will NOT work! Nor will any application relying on ADB.
adb devices
Must list the device(s). If the list is empty, and most likely the RSA prompt did not occur, then no communication will work. If the list is empty the current ADB (and SDK) must be updated or installed fresh (in the case of apps bringing in their own ADB runtime, like Helium / Carbon).
In the case of applications that do bring their own ADB, if the version is old, and these apps insist in using it instead of the SDK one, these files need to be replaced with the latest ones from Android SDK. Plain and simple copy & paste.
As for Android SDK, the only required packages to be installed are SDK Tools and Platform-tools. There, ADB.exe will need some support libraries, on Windows these files are AdbWinApi.dll and AdbWinUsbApi.dll. After all is done, the SDK can be uninstalled from SDK Manager while being able to retain the ADB tool if this is the only runtime used, depending on the case in question.
After doing all steps like enable debug, ... I had to put a sim card and reboot the phone
Solution for Windows 7 and Nexus 5 (should be applicable for any Nexus device):
I figured out that my system was installing the Nexus 5 default driver for windows automatically the moment I was connecting my Nexus 5 to my system through USB. So uninstalling the default driver was in vain and it gets installed automatically anyways.Moreover if you uninstall the default driver, you won't be able to locate Nexus 5 under Devices in Computer Management. So here is what i did and worked for me!
Computer-->right Click-->Manage-->Device Manager-->Portable Device-->Nexus 5-->Update Driver Software
Choose 'Browse my computer for driver software'
1.Make sure to give this location: %APPDATA%\Local\Android\sdk\extras\google\usb_driver
Click Next and you are done.
I have suffered the same issue and was able to solve it by simply changing on my Android device (Nexus 5X) in Developer options > Select USB Configuration to RNDIS (USB Ethernet)
For those trying to connect their android phone in adb with no luck and have tried every USB configuration (MTP, PTP, RNDIS). It is worthing noting that in my case with my Nexus 5X on Windows 7 I successfully connected the phone to adb only by choosing the Charging USB Configuration. With any other configuration (MTP, PTP, ...) it doesn't work.
USB Driver: Google USB Driver v11
ADB Version: Android Debug Bridge version 1.0.39
Madx's answer is a strong hint. Now I can make MTP work for my Ubuntu 20 and Nexus 5X (Android 8) device. MTP is an easy solution in Windows for smartphone users. However, to me and many Ubuntu/Linux users, current Ubuntu/Linux MTP tools "LOOK" messy and unstable for Android devices, e.g. No folder is shown for android phone in Nautilus.
Delving deeper I find it might be a security enhancement done by GOOGLE in the Android device/phone side. Direct internal data access remains a privilege for the developers. And one needs to set/reset MTP as a developer for Android device in order to make Ubuntu MTP tools work. There is nothing wrong with Ubuntu/Linux MTP tools.
The steps for MTP data access are an extension to Madx's answer:
(For Android device) Enable from Developers Options the Debug USB Mode.
Unplug the device from the computer.
3.1) Go to Settings → Storage, in the ActionBar, click the option menu and choose USB computer connection.
3.2) If you didn't find the 3.1) option then go to Settings → Developers Options → Select USB Configuration.
4.1) Select MTP connection.
4.2) Select Camera (PTP) connection.
4.3) Select MTP connection again. (This refreshs GOOGLE MTP protocol stack, I guess)
Plug the device and you should have a popup on the device allowing you to accept the computer's incoming connection, or something like that.
If it doesn't work try to toggle the Debug USB Mode in the Developers Options
And now file folders are shown up for N5X device in Nautilus.
Are these too much? There might be a bug in Android MTP implementation, and 4.2) & 4.3) are steps to WAKE Up Android MTP stack:-)
As a kind reminder, Windows and FTP are the last resorts for MTP.
Try executing :
sudo ./adb kill-server
sudo ./adb start-server
sudo ./adb devices
In my case:
The phone was connected as a media device.
Clicked on that message and got a menu. "USB computer connection"
In that menu chose to connect it as a camera (for devices that do not support MTP)
And then it worked.
Oh boy, I spent 3 hours for this simple thing and tried combination of above instructions.If it doesnt work for you, just try several combinations of above instructions and it will. I am on windows 7 and nexus 5. Issue I had was when I try to install driver from the google usb folder, windows 7 fails to install. Here are my steps:
-first uninstall all nexus drivers on windows 7. connect with USB cable, go to device manager and uninstall the driver; unplug the cable and repeat until no drivers are found and nexus shows up under "other devices" in device manager. I also configured nexus device as camera (PTP)
-follow #Dharani Kumar instructions. They make appropriate configuration changes for nexus device
-follow #Harshit Rathi instructions. They will ensure eclipse can show the device when windows detects the device
-unplug and replug the USB cable after a minute. Now you should see a pop up on nexus device. click it so that windows 7 will allow installing the driver from your local system. if you dont see this, restart your device or pc
-follow #Rick's instructions.you can download USB driver as listed by #jimbob
If you still have a problem, re read this entire thread and go from there (I spent hours on other web sites; those bits and pieces didnt help)
Go here and download and unzip to an easy location:
http://developer.android.com/sdk/win-usb.html#top
Download and install
I had the same problem, USB debugging enabled, device showing up in windows but I never got the question about RSA fingerprint when I connected my Nexus (6) device, nor did it show up in the Android Device Manager.
BUT
In the windows device manager I did have an entry saying it was an android device and Composite ADB interface etc. Still didn't work.
When I tried the previous tips about manually updating the drivers, Windows 8.1 just responded that "Windows has determined that the driver software for your device is up to date" this was not true. Looking at the driver details I saw that the driver was published by "ClockworkMod". I realized this must be because I had installed the Helium app sometime last year. So I uninstalled that, still had the same problem. Checked again, this time it was indeed google drivers, but version 7 published in 2012 (and not version 11 published 2014). I uninstalled these AS WELL and then tried the trick of reinstalling the driver from the SDK located in:
%localappdata%\Android\sdk\extras\google\usb_driver
Now when I replugged my device it finally works and can be debugged with Android Studio.
Indeed a driver problem.
Answer by Rick and MadX is the right way to do the steps (Thumbs Up for the answer)
In my case I am using
Akcess USB Type C Data Sync Cable For Nexus 5x, 5P - White
As Nexus 5x do not supply type C to usb cable I purchased it from some vendor.
Having the same issue. What I am doing stupidly is:-
I am connecting the cable in wrong way. After I reconnect it from upside down its working for me.
I might think that some of the Cables do not support debuggable. But its in my case.
This(Image) is my case the Type C should be as USB side symbol. A stupid solution, but work for me
I am attempting to install an Android app on my brand new Nexus 10. I have a .apk file. I have downloaded the Android SDK, installed "Android SDK Tools", "Android SDK Platform-tools", and Google USB Driver. I have checked the setting on my Nexus 10 for "Unknown Sources".
When I run "adb devices" from the command terminal, it doesn't list any devices. I attempted to follow this recommendation, because it was identical to a suggestion I had previously found here on Stack Overflow. After following those steps, "adb devices" still returns an empty list and to make it worse, when I connect my Nexus 10 to my PC, Windows doesn't show any folders within the device.
I have undone the steps in that link, along with everything else I have done so far, as well as uninstalling my Nexus 10 from Device Manager and reinstalling it, but I am still not seeing any folders in the device.
Is there anything I am missing to get my device to show up in ADB devices?
What can I do to get Windows to see the folders within the device?
Windows 8 wouldn't recognize my Nexus 10 device. Fixed by Setting the transfer mode to Camera (PTP) through the settings dialogue on the device.
Settings > Storage > Menu > USB Computer connection to "Camera (PTP)"
For Windows 8 users:
After trying every solution given here, with no success, I found this:
Go to Device Manager
Browse my computer for drivers -> Let me pick from a list of device drivers on my computer
Choose Android Device and then Android ADB Interface.
Now I have my devices listed at adb devices.
This situation seems to arise with some ADB drivers. I have encountered the same thing with a couple of Google devices and installing the Universal ADB windows driver has fixed it for me every time.
Use another cable.
Just found out that one of my regular charging cables had Vcc, Gnd pairs, but no Data+, Data-.
https://en.wikipedia.org/wiki/USB#Pinouts
Make sure to Enable USB debugging in Settings -> Developer options
Also, run "adb devices" after getting into the platform tools folder in the Android SDK (unless you have that folder on your system path already), otherwise the command won't be found.
The device may not be visible for debugging if it is in MTP mode. Some devices only work in PTP mode (or even in "charging only" mode).
This can be changed in Settings > Developer Options > Networking > Default USB configuration > PTP.
Also, you'll get a notification on your android device asking you for confirmation about USB configuration setting change and to allow it.
Note: You can turn on developer options by following the link below:
enable developer options
I have found a solution (for Windows 7):
Connect your Nexus 10 to PC
Go to Windows Device Manager
RClick on ADB Interface -> properties
Details -> Hardware Ids.
You will see two records like these:
USB\VID_18D1&PID_4EE2
USB\VID_18D1&PID_4EE2&MI_01
5 Open the android_winusb.inf file (I have it in "C:\Users\<username>\AppData\Local\Android\android-sdk\extras\google\usb_driver" directory)
6 Create such records in [Google.NTx86] and [Google.NTamd64] sections using Hardware Ids from properties of ADB interface:
;Google Nexus 10
%SingleAdbInterface% = USB_Install, USB\VID_18D1&PID_4EE2
%CompositeAdbInterface% = USB_Install, USB\VID_18D1&PID_4EE2&MI_01
7 Save the file, and update driver for ADB Interface with showing the path to "C:\Users\\AppData\Local\Android\android-sdk\extras\google\usb_driver" directory
Sometimes ADB loses connection to the device, and needs to be reset. If you have everything else working (ie USB driver installed, Developer settings enabled on the device), and still can't see your device, you need to reset the ADB process.
This is available in the DDMS Perspective (from within Eclipse), Devices tab (the triangle on the far right includes a menu item to perform the reset).
Otherwise from the command line, you can reset it with the following 2 commands:
adb kill-server
then
adb start-server
Enable Developer options in your device. To enable the developer mode, setting->About phone, tap Build number option 8 times continuously
Go to Settings-> Developer options and Turn on USB debugging
From the above steps it didn't work try this step, Go to Settings->Security and turn on Allow Unknown Resources
You have to download the drivers from the SDK manager (extras → Google USB Driver)
Then you have to install the USB driver in Windows (it works for me in Windows 8.1):
(Copy and paste from http://developer.android.com/tools/extras/oem-usb.html#InstallingDriver:)
Connect your Android-powered device to your computer's USB port.
Right-click on "Computer" from your desktop or Windows Explorer, and select "Manage".
Select "Devices" in the left pane.
Locate and expand "Other device" in the right pane.
Right-click the device name (such as Nexus S) and select "Update Driver Software." This will launch the "Hardware Update Wizard".
Select "Browse my computer for driver software" and click "Next."
Click "Browse" and locate the USB driver folder. (The Google USB Driver is located in <sdk>\extras\google\usb_driver\.)
Click "Next" to install the driver.
After downloading the Google drivers via Android SDK Manager (available via Eclipse, Intellij or Android Studio), I had to update the driver in Computer Management > Device Manager > Other Devices > ADB - right clicking and clicking on update driver and browsing for updated driver finally did the trick.
BTW, a total nightmare for me as well. I continue to be bewildered that setting up a dev environment should be the most difficult task imaginable, with each new inexplicable failure leading to another one. Jeesh! Good luck.
On my Windows 8.1 64bit (Nexus 5 did not show up), only manually installing the USB driver fixed it:
http://developer.android.com/sdk/win-usb.html
The "Google USB Driver" in "Android SDK Manager" was installed already.
I still get this once in a while and it usually works if I unplug it and plug it back in a different port. I'm on Linux but had the same thing happen on Windows before.
Installing Samsung Kies and using their tool to reinstall device drivers, is what finally worked for me with my Galaxy S3 and Tab S 8.4
Normally SDB will download the driver in the **android-sdk-windows\extras\google\usb_driver** path
Here are the steps that worked for me:
Enable USB debugging.
Do to device manager, right click on ADB device and click update driver software.
Select "Browse my computer for Driver Software"
Select "Let me pick from list of Device drivers on my computer"
Click on "Have Disk" option.
Select the driver path **android-sdk-windows\extras\google\usb_driver** (path of sdk)
7.Select 1st driver out of list of drivers shown.
And hopefully, it will work.
Edit: I recommend you DO NOT run ADB under VirtualBox if you are using a Windows Host. Somehow I got VirtualBox to lock the device drivers on the host, eventually making it so that the ADB wouldn't work on the client nor the host for any device I plugged in. To fix, I removed VirtualBox extensions on the host and ran http://www.nirsoft.net/utils/usb_devices_view.html to delete the incorrect drivers. I could not get the correct drivers to load while VirtualBox extensions were installed, and this problem was a complete bastard to diagnose and fix.
Edit 2: Also the following is probably out of date, now that Google have released an integrated ADB extension for Chrome.
What an installation nightmare... Here are the steps I needed to get my Nexus 10 recognised on an XP virtual machine running under VirtualBox:
If you get asked to install Nexus 10 drivers, make sure to untick "don't ask again" (you WANT to be asked again!).
Plug in the Nexus 10 USB connection
Turn on debugging in the Nexus 10 settings Developer menu (tap "About Tablet" 7 times to get that menu).
In your virtual machine settings (host), add the samsung Nexus 10 device to the USB Device Filters (important - selecting it from the devices menu didn't seem to work).
In guest install java jre (if you don't have java installed). In Control Panel, change Java settings so that java doesn't run in the browser (to help prevent security issues).
In guest get the adk zip file and put it somewhere permanent. I needed to delete the .android config directory from the user directory because I moved the directory.
Run the SDK Manager.exe - if it doesn't work, try running sdk\tools\android.bat which seems to give better error reporting.
From SDK Manager install the Google USB driver package.
Unplug the Nexus 10 and plug it in again, and install the Google USB driver package.
Restart the guest.
running c:>[...]\sdk\platformtools> adb devices finally shows me the device...
For the Blu Studio 5.5s ADB drivers, you have to go through this hoop. I am certain it is the same with all Blu phones or maybe for all non-Google mfg phones, I am not sure. First of all if you connect the Blu device with USB cable and USB Debuggin off, you will see that Windows 7 loads a generic driver for you to copy on/off files to the phone and SD storage. This will appear when the USB cable is first plugged in and appears as a device icon under Control Panel, Device Manager, Portable Devices, BLU STUDIO 5.5 S (or the device you are working with). Do not bother getting the hardware ID yet - just observe that this happens (which indicates you are good so far and don't have a bad cable or something).
Go to the phone and switch on USB Debugging in the Developer section of your phone. Notice that an additional item appears as an undefined device now in the device manager list, it will have the yellow exclamation mark and it may have the same name of the phone listed as you saw under Portable Devices. Ignore this item for the moment. Now, without doing anything to the phone (it should be already in USB debug mode) go back to the Portable Devices in Device Manager and right-click the BLU STUDIO 5.5 S or whatever phone you are working with that is listed there without the exclamation mark (listed under Portable Devices). Right click on the icon under Portable Devices, in this example the name that appears is BLU STUDIO 5.5 S. On that icon select Properties, Details, and under the pull down, select Hardware IDs and copy down what you see.
For BLU STUDIO 5.5 S I get:
USB\VID_0BB4&PID_0C02&REV_0216&MI_00
USB\VID_0BB4&PID_0C02&MI_00
(Note if you do this out of turn, the HW ID will be different with the phone USB debugging turned off. You want to copy the value that it changes to when the USB debugging is ON)
Now do as the instructions say above, of course customizing the lines you add the the INF file with those relating to your own phone, not the Nexus 10. Here is what to customize; when you downloaded the SDK you should have a file structure expanded from the ZIP such as this:
\adt-bundle-windows-x86_64-20140321\sdk\extras\google\usb_driver
Find the file named: android_winusb.inf in the usb_driver folder
Make a copy of it and name it anything, such as myname.inf
Edit the myname.inf and add the lines as instructed above only modified for your particular phone. For example, for the BLU STUDIO 5.5 S, I added the following 2 lines as instructed in the 2 locations as instructed.
;BLU STUDIO 5.5 S
%SingleAdbInterface% = USB_Install, USB\VID_0BB4&PID_0C02&REV_0216&MI_00
%CompositeAdbInterface% = USB_Install, USB\VID_0BB4&PID_0C02&MI_00
Note that you add these lines to both the 32 and 64 bit sections, matching how the example in the tutorial reads.
Now go back up to the unknown device that appeared in Device Manager when you switched on device USB debugging and right click on this item (has yellow exclamation mark), right click on it and then select Update Driver Software, and then Browse My Computer, Let Me Pick, click on the Have Disk button and browse to find the myname.inf. Continue to agree to all the prompts warning you it might not be the right driver. As the final step, Windows should have identified the device as Android ADB Interface and once that is done, you should be able to go back, open your CMD window and run the command "adb devices" as instructed in this tutorial and now you should see that the phone is now discovered and communicating.
Now you can go have fun with the adb command.
At first Thanks #rmsyk's post.
For my issue and after long time suffering with Meizu C9 Pro witch require just android ADB drivers (no special drivers) referring to manufacturer and it solved in my Windows 7 PC by the bellow steps.
Make Sure to
Install latest version of ADB & Fastboot with the needed drivers.
Enable Developer options & USB Debugging.
Enable Media File Transfer (MTP Mode).
Manually replace C:\Users\USERNAME\.android with the folder included here ,Then kill process 'adb.exe' if found from Windows Task Manager and use adb devices and finally my device listed successfully and just confirm the PC as trusted.
Notes:
Android Studio was uninstalled in earlier time and also i tried to reinstall but was not a solution at all.
Tried adb kill-server & adb start-server but was not a solution too.
As well as the usual settings (enable USB debugging) I also had to select Enable OEM unlock in the Developer options.
This supposedly makes the device less secure, but it's your device and you know what you want to do.
Once checked the device behaved as expected and appears in the adb devices list.
You can always reverse all these settings once you're finished.
Confirm you have the correct platform SDK tools
For Windows 10, had to manually download the latest platform SDK tools from Android as the version supplied through Visual Studio 2017 EMDK for Xamarin was not sufficient. Everything else except adb.exe devices worked.
https://developer.android.com/studio/releases/platform-tools
After the platform tools were manually downloaded, device showed up regardless of USB configuration (charging, MTP, etc.)
Installing an emulator device at this stage is also helpful to see whether the problem is with adb or your physical device.
List of devices attached
12345D1234 device
emulator-5554 device
There could be two reasons why adb devices command is not working for you. Either your phones USB drivers are not installed properly or you have not enabled USB debugging mode.
I created a tool that makes installing USB drivers a one click thing.
Just connect your phone in USB debugging mode to PC.
Run my tool
It will detect and install drivers specific to your phone and also install the latest ADB & Fastboot binaries with it.
The tool is available at my GitHub Repo
It's so easy, just turn off your Android device, and then hold down both "Volume Down" key and "Power" at the same time. Wait a few seconds till it start in recovery mode, done.
Now type adb devices, and you'll see your device.
I had the same problem with my Windows 8. The Android/SDK USB driver was installed correctly, but I forgot to install the USB driver from my phone. After installing the phone USB driver ADB works fine.
I hope this will help.
Turn on debugging in the Nexus settings Developer menu (tap "About Tablet" 7 times to get that menu).
Freaking Google tricks!
Have you had an android update recently? I updated to Lollipop and all the sudden I had no adb devices. Boo! I spent awhile trying a few things to no avail. Then I went into my developer options and lo and behold, "USB debugging" had been turned off. Silly Google. After turning it back on, it immediately showed up and I'm back in business!
GoTo DeviceManager, then right click on the android device and click uninstall driver.
Unplug and plug the device back...then a pop will come on your device while your pc installs the required drivers. Click "allow" on the popup.
You can see your device when you type "adb devices" in command prompt.
For Windows, just end all the processes related to Blue stacks or any such emulator if you are using.
Worked for me.
There's obviously a ton of different problems that could be causing this (and a ton of different solutions to go along with those problems). So think about all the solutions!
If you've gotten this phone and computer pair to work together before, but they aren't working any more, it might be a specific program on your computer rather than a problem on your phone. Some programs install/use their own adb, and only one of these can connect to your phone at a time. I think this makes a race condition, so sometimes it'll connect fine.
Some programs that run adb:
HTC Sync Manager - uninstall this.
chrome://inspect - lets you view localhost on your phone. Just close the window when you're done with it.
To have ADB in MTP mode
If you don't find any ADB device (nothing with exclamation mark) in the device manager (with all developers settings on phone checked), do this:
In Device Manager :
UpdateDriver->Manuel Install->Search on my computer->Select from installed driver list -> then select the one with the word usb in it (not MTP).
Edit: after that, you'll then have 2 or 3 peripheral, one for USB and one for ADB, install adb driver using usual method (see first answers)
For my Nexus 6P downloading drivers from Google helped resolved the issue. Here is the URL with documentation. And here you can download the driver itself.
P.S. I saw some people advice to download some drivers from random places on internet. While this might help it's too dangerous in my mind to download unknown drivers from unofficial places. So the one from Google worked well for me :)