The How To Install ADB on MAC OS X
-Download the latest Android SDK from Google: Android SDK
-Extract the ZIP file to your desired location
-To get ADB, you need to install the SDK: Installing the SDK
-If you are not a developer and not planning to develop, then just download the following zip file containing only the ADB tool and proceed with the tutorial: ADB
-Create an environment variable (Optional)
-Open Terminal
-Type cd ~ this will take you to your home directory
-Type touch .profile this will create a hidden file named profile
-Type open -e .profile this will open the file you just created in TextEdit
-In the file, type export PATH=${PATH}:/pathToTheAndroidSdkFolder/android-sdk-mac_86/platform-tools
-Save file, close TextEdit, Quit Terminal, and Relaunch Terminal
[NOTE: By creating an environment variable you won’t need to cd to the Android/tools folder every time you want to run ADB]
**You are good to go, type in terminal adb devices, this should give you a serial number, which corresponds to your phone. Looks something like this:
List of devices attached
HT99PHF02521 device**
[NOTE: If you did not create an environment variable, then cd to the AndroidSDK/platform-tools folder, then type ./adb devices]
Also make sure you have your phone plugged in and have USB Debugging turned on (Settings > Applications > Development)