Eclipse And Android: Cannot Debug On Samsung Galaxy S2 Because Not Detected

I am just starting to learn on Android development. I use Ubuntu 11.10 and Eclipse. I have installed the needed plugins from android development, and I have also write yet some exa

Solution 1:

Enable USB Debugging on the device from the Settings -> Applications -> Development

Solution 2:

Try Samsung kies, it delivers suitable ADB driver: http://www.samsung.com/uk/support/usefulsoftware/KIES/JSP

With the right adb driver (from kies or elsewhere) it should work flawlessly

EDIT: on linux: http://developer.android.com/tools/device.html

If you're developing on Ubuntu Linux, you need to add a udev rules file that contains a USB configuration for each type of device you want to use for development. In the rules file, each device manufacturer is identified by a unique vendor ID, as specified by the ATTR{idVendor} property. For a list of vendor IDs, see USB Vendor IDs, below. To set up device detection on Ubuntu Linux: Log in as root and create this file: /etc/udev/rules.d/51-android.rules. Use this format to add each vendor to the file: SUBSYSTEM=="usb", ATTR{idVendor}=="0bb4", MODE="0666", GROUP="plugdev"

In this example, the vendor ID is for HTC. The MODE assignment specifies read/write permissions, and GROUP defines which Unix group owns the device node. Note: The rule syntax may vary slightly depending on your environment. Consult the udev documentation for your system as needed. For an overview of rule syntax, see this guide to writing udev rules. Now execute: chmod a+r /etc/udev/rules.d/51-android.rules

Solution 3:

Try another USB cable

If you have a possibility, check if it works with another device

Localize your problem, make sure that it's something wrong with software (if it is)

Solution 4:

Execute the following command from a terminal

$ echo"0x04e8" >> ~/.android/adb_usb.ini

and restart adb using

$ adb kill-server
$ adb start-server

check if the device is listed using adb devices

Solution 5:

I experienced the same issue on Mac OS X with Eclipse. Simply putting the phone in 'debug' mode (Settings -> Applications -> Development -> USB debugging) did not solve the issue. I have to do below in the command line to solve the issue.

sudo adb kill-server
sudo adb start-server