Android Studio doesn't see device

问题:

The AVD manager in Android Studio doesn\'t show my device but \"adb devices\" does show it. Am I missing something obvious here?

回答1:

To change what your application defaults to when you click run or debug in Android Studio, follow these steps:

1. go to Run

2. Click on Edit Configurations

3. Select the project

4. find the Target Device section under the General tab on the Android Application page.

That seems to be where you toggle what the project builds to. If you\'re importing a project it actually defaults to Emulator, not sure why. You can also select \"Open Select Deployment Target Dialog\" to list both connected as well as emulated devices.

回答2:

I recently had trouble with this, and regardless of what I did(restart adb, edit adb_usb.ini, restart computer+device+swap usb port, reinstall studio etc. etc.) I just couldnt get it to work, and could not even detect my device using \'adb devices\'. Finally after about 2 hours of googling and testing, someone suggested switching to PTP instead of MTP on my device. When I did this I got a popup on my device asking me to allow my mac access and suddenly everything worked(had to restart studio for it to show up there as well though).

I might be bumping this thread now, but it is the first result on google search, and I had a lot of trouble finding an answer for this problem, so I thought this should be added as a solution.

回答3:

On your device:

Go to settings/ developer settings/ allow USB debug mode

If \'allow USB debug mode\' option is disabled. Then you might have the device currently connected to your PC. Disconnect the device and the option should now be available

Note: On Android 4.2 and newer, Developer options is hidden by default. To make it available, go to Settings > About phone and tap Build number seven times. Return to the previous screen to find Developer options.

If it still doesn\'t help, you can google it with this expression:

How to enable developer options on YOUR_PHONE_TYPE

回答4:

Some cables can not been used for developer mode or transfer file. A solution would be change your cable and don\'t waste time.

Trendblog post

回答5:

I had to killall adb because somehow, Android Studio managed to crash and did not want to communicate with adb anymore. Thus, my device did not show up.

So quitting Android Studio, terminating all adb instances in Terminal and starting Android Studio again (should ask if it should enable debugging then) worked.

回答6:

It works for me by following steps below:-

If you using Windows, the device won\'t show up because of driver issue.

Go to device manager (just search it using Start) and look for any devices showing an error. Many androids will show as an unknown USB device and comes with exclamation mark. Select that device and try to update the drivers for it. for update part follow the link:universal adb

But before that, you have to update your sdk manager and make sure Google USB Driver package is installed.

When done, the driver files are downloaded into the \\extras\\google\\usb_driver\\ directory. Hints: Search \"android_winusb.inf\" under Windows Start and Open File Location to get the directory mentioned.

Open up your device manager, navigate to your android device, right click on it and select Update Driver Software then select Browse driver software. Follow the file location path previously to install Google USB Driver.

Restart Android Studio and Developer Options in your android device and reconnect USB.

Cheers !

回答7:

My Nexus 5 phone did not have developer options in the settings menu. I had to do the following:

On Android 4.2 and newer, Developer options is hidden by default. To make it available, go to Settings > About phone and tap Build number seven times. Return to the previous screen to find Developer options.

回答8:

After spending some time I found the problem was to enable USB debugging option to on. Just find in your mobile Settings->Developer Option->USB debugging. Just enable it and it works. It might help someone!

回答9:

In my case the following steps helped to resolve the issue:

1) Ensure the package \"Google USB Driver\" is installed in Android SDK Manager

2) Download \"ADB Driver Installer 2.0\" from here

3) Run the tool downloaded and connect your smartphone; in my case it showed that the driver had been installed incorrectly and suggested to fix it

After those steps my Android Studio instantly recognised the device! Both MTP and PTP started to work.

---

Tested for Samsung (Android 4.1.2) and Xiaomi MI4W (Android 4.4.4)

回答10:

In my case

android studio suddenly stop seeing my device

I fix it by change USB option to Media device (MTP)

how to get USB option from storage USB Computer Connection

check Debugging from developer options

try re-run on device , it should work

issue

USB option was charge only

UPDATE ANSWER 26/7/2016

there many reasons like not enabling developer mode --> USB debugging(if you dont see developer option click 7 times at build number )

but I face another issue every thing was works just fine suddenly android studio cant see my device

to fix this issue you need to restart adb , from terminal

adb kill-server
adb start-server

or from ddms

in devices section --> click at small arrow down --> restart adb

回答11:

If your phone was working previously

Before you do anything complicated, this might be a simple problem. Just unplug and plug back in.

If there are additional issues

You also might want to check that your configuration is set up to launch to your phone.

run --> edit configurations

And make sure that you either default to the USB device or the chooser dialog if you are going to be switching between devices on your emulator as well.

回答12:

I have found that what works for me is:

• CD to your sdk platform-tools folder

• Check if adb sees your device

  ./adb devices
  

• If it displays \'List of devices attached\' and a blank line below, then restart adb as follows:

  ./adb kill-server
  ./adb start-server
  

  then re-run ./adb devices and see if it picks up the device, eg as follows:

  List of devices attached
  015d2bc285601c0a device

回答13:

Also try uncheck \"Tools\" - \"Android\" - \"Enable ADB Integration\".

This is work for me after update Windows to 10.

回答14:

Try the following solutions (for Windows):

• Go to your sdk tool installation path, and under \\sdk\\platform-tools folder and run this command:

  adb devices

If your device it listed it should show something like this:

C:\\android\\sdk\\platform-tools>adb devices
List of devices attached
081e96500591f039        device

If not, follow this:

• Try these commands:

  adb kill-server

  adb start-server

• Make sure your phone has Developer Options in Settings (if not, go to Settings, About phone (or device), click on Android Version multiple times until you see a message).

• Make sure USB debugging on your phone is enabled (go to Developer Options in Settings and turn it on)

• Make sure you have Select USB Configuration set to MTP (this is also in Developer Options).

• Make sure you can see your files in your device in Windows Explorer when you connect via USB.

• Make sure you have the driver for your device properly installed (most of the time, this happens when you first plug in your USB cable).

• In Windows, right click on Computer, and go to Device Manager, check if you have Android Device right on the root folder and under it should be Android Composite ADB Interface. If you don\'t have this, you have to download the Google USB Driver. Get it here:

http://developer.android.com/sdk/win-usb.html

• In Device Manager, find your device (should have yellow Exclamation point), right click, and update driver (open the folder with the driver you just downloaded)

• If this doesn\'t work, try restarting Android Studio or plugging your device back in again.

Some cheap devices (some $30 tablets) don\'t provide the USB drivers to connect in Device Manager, so in this case you are out of luck.

回答15:

Be sure that you have downloaded the correct API for the version you device is using. After updating your device\'s Android version or switching to a different device you may not have the correct API downloaded on Android Studio. To do this:

1. Check your devices Android OS version by going to Settings>About Phone>Android Version

2. Make sure you have the correct API installed in Android Studio in the SDK Manager

回答16:

The AVD Manager is for emulator images. It never shows hardware. This is true for any usage of the AVD Manager: Eclipse, Android Studio, etc.

回答17:

After u turn on debug mode open settings/Developer options Update config same image

回答18:

Try changing mode of usb connection to midi devices. Thats what worked for me.

回答19:

If you use Samsung you can download and install the device driver from Samsung.

Note

1. You need to enable ADB mode(Like the eleventh comment)

2. You need to set Target in Android Studio to \"Open Select Deployment Target\" Dialog. To set Target : Run > Edit Configurations > Targets > Open Select Deployment Target Dialog

回答20:

I plugged my phone in and it was detected fine (no need for device manager or anything like that).. but Android Studio wasn\'t seeing it.

I found it takes two requirements to be met

- PTP (not MTP)
- USB Debugging mode on

For PTP , go to settings..storage..usb connection..PTP (For MTP/PTP , maybe on my nexus it\'s there, but on my doogee I see it under \'developer options\' .. then under networking , above input, it says \"select usb configuration\")

For USB debugging, settings..about..tap build about 7 times, then a new option appears for usb debugging and you can turn it on.

回答21:

If you still have this problem (later than summer 2015) maybe you should:

1. Go here: http://developer.android.com/sdk/win-usb.html#top
2. Download the driver
3. Reinstall it

I recently installed Windows 10 (not an upgrade, a clean installation) and I forgot the ADB USB driver

回答22:

Check device driver if your device is Galaxy install Kise will search your driver

回答23:

As driver was unable to load, I was unable to connect to my device on windows 7. I followed the steps below:

1. Download Android USB driver from Intel site
2. Install the driver and reboot your system
3. Connect your device and it worked

回答24:

I have been troubleshotting same problem. I have tried all the tips in this topic in posts above me.

My situation was: - computer have seen my tablet - had debug usb options in developer mode on - adb in sdk was not seeing my device, killing & start didnt help

The problem was I had Samsung Galaxy drivers on my win8. When I went to devices manager, there was Lenovo A7600 Tablet with yellow marking. Settings -> actualize drivers -> choose from existing ones and i hooked up the Samsung drivers to this one.

It worked like charm.

回答25:

I know it sounds crazy but i just reboot my phone while was connected and it appears

回答26:

For Samsung Galaxy s4 i resolved issue by instaling Kies software, after that everything works like a charm.

回答27:

I was facing the same issue. Turned out to be a faulty data cable. The device would start charging but would not show up in connected devices in Android Studio.

Trying another cable worked fine.

Try another cable first if you have been using your current one for a while.

回答28:

The idea is to fix USB driver on your computer. Start -> Device Manger -> Other devices. Right click on the USB device then Update Driver Software -> Browse my Computer ..-> Let me pick... -> Android device -> Next.

回答29:

If every configuration is sorted, what worked for me was to switch the device to be connected at PTP and then back to MTP.

回答30:

Switching to PTP USP Option instead of MTP is the solution.