Develop Reference

Unrecognizable device on Android

I want to run my code on the phone. But Android does not recognize my device. I also did the connection assistant.
But the following error is given. please guide me.

Needed informations
Is ADB installed with Android Studio, or have you got external tool?
Is there a generic Android USB Device driver installed? It's provided with Android Studio, and should be obtained with SDK Tools.
Possible solution
If even AVD cannot be recognized, it could be fault of built-in ADB server. I would recommend installing ADB as an external program, e.g. from here (ClockworkMod page).
After installation, reboot PC and plug your phone in. If phone is visible, check for availability via adb devices command from CMD/terminal. Don't launch Android Studio yet, as it has its own instance of ADB server and you wouldn't be able to launch second one from console.
If phone is visible, use adb kill-server command to finish the console instance, and launch Android Studio. Everything should be detected, if not - you really should submit that bug...
If phone is not visible all the time after issuing adb devices, there is a chance that not all drivers are installed. Check ASUS for drivers, if they were installed automatically - install them manually.
Hope it will help!

Have a look at PdaNet+
Install both the desktop client and the corresponding android application from the google play store. Once you plug in your device it will prompt you that your device has been connected and adb should recognise it.

Android Studio is not installing app into device

My device is running android Lollipop 5.1 with Developers Options enabled and USB Debugging option checked. When I hit the RUN button on Android Studio it shows the following in the event log:
Target device: qmobile-lt500-D5180B1R63091071
Installing APK: C:\Users\Umair\AndroidStudioProjects\MyApplication\app\build\outputs\apk\app-debug.apk
Uploading file to: /data/local/tmp/com.example.umair.myapplication
Installing com.example.umair.myapplication
DEVICE SHELL COMMAND: pm install -r "/data/local/tmp/com.example.umair.myapplication"
And then nothing happens. App doesn't install and open. When I click on Android Monitor, it shows events on logcat, my device name etc. confirming that it is properly connected.
Someone tell me where the problem is.

In your mobile check unknowns sources apk install on/off
And make sure in your device space is available

First uninstall app from your device if you've already installed it.
Then in your IDE do clean and rebuild,and try restarting the device and also restarting your IDE.
That should work as expected now

adb needs an upgraded sdk to work but cordova needs a downgraded sdk. How can I make both happy?

When I type adb devices -l this is the output:
$ adb devices -l
List of devices attached
VS9854G22b261d6 offline
I think that VS9854G22b261d6 is my phone. I had to install LG drivers before that would show up.
It seems like the solution to that "offline" problem is to update the android sdk. But, cordova requires an older SDK (api version 19, right?) So how can I make both adb and cordova happy?
I'm on Windows 8.1 and I have a Verizon LG G3 device. I have enabled USB debugging on the device. When I type cordova run android it starts the emulator and deploys to that. I am expecting this to deploy onto my connected device instead of onto an emulator. The "hello world" app deploys fine to the emulator, but I'm trying to deploy it to my device and I can't figure out why it's not even trying to do that.
When I type cordova run android this is the output:
...
BUILD SUCCESSFUL
Total time: 2 seconds
Built the following apk(s):
C:\...\cordova\platforms\android\ant-build\CordovaApp-debug.apk
WARNING : No started emulators found, starting an emulator.
Waiting for emulator...
### Error: could not find emulator icon resource: android_icon_32.png

In my case, I plugged into a different USB port and then it said "unauthorized". I changed the USB connection to camera and then the device asked me to authorize it. Then adb devices said "device" and cordova run android worked as expected. Seems to be a ton of different solutions to the same problem. This is all I needed.

adb doesn't see device online, android studio does

I have the opposite of this problem: Android Studio doesn't see device
Android studio sees the device and can deploy to/ run on device no problem.
But I'm trying to use apache cordova and cannot see the device online from the command line.
adb devices
shows my device number, and "offline".
I've tried all of the recommended steps here https://stackoverflow.com/a/9966660/210757
Any suggestions?

Trying to debug apps from eclipse on android

I am developing apps for android and I bought an bq Maxwell 2 Lite, and I wanted to test them in the device, but i can't seem to do it... can somebody help me with that?
The android version on the device is 4.1.1 and I have enabled debugging throw USB.
Thank you all for your time and thanks for all the help
Carlos Morgado

So to test with any device you need
Install the driver for the device on your OS.
Enable USB debugging on your device.
Plug-in the device through an USB.
Run the app through the IDE and select the configured device to run the application
This should help you get started.

For using USB debugging in eclipse, make sure that you have all the drivers installed. Open sdk manager, under extras you can see Google USB drivers, make sure that this is downloaded.
If after this also it didn't work, go to device management if you are using windows and find your device. Right click on your device and update device drivers, update from my computer and give this folder sdk folder\sdk\extras\google\usb_driver. Set platform-tools folder in your path variables and run these commands:
adb kill-server
adb start-server
You can see list of attached devices using this command:
adb devices