macos - OS X 10.6.6 and "adb devices" fails to list android devices

Question

adb devices was working fine last year, but after upgrades and new software installs, adb devices no longer recognizes USB attached Android devices.

Here is what I have tried:

adb kill-server
adb devices

adb usb
  error: Device not found

Answer 1

If you have installed EasyTether on OS X, the EasyTetherUSBEthernet.kext can prevent adb from communicating with your mobile device.

If you use Easy Tether, BEFORE you plug in your phone run:

sudo kextunload /System/Library/Extensions/EasyTetherUSBEthernet.kext

(or unplug/plug your phone in after)

If you are done debugging and want to use EasyTether again, either restart or:

sudo kextload /System/Library/Extensions/EasyTetherUSBEthernet.kext

---

If you want to remove the EasyTether kext so it never hassels you again:

sudo kextunload /System/Library/Extensions/EasyTetherUSBEthernet.kext
sudo rm -rf /System/Library/Extensions/EasyTetherUSBEthernet.kext

---

Reference/Credit: http://www.intohand.com/post.php?s=2011-02-17-android-debug-bridge-not-just-working-on-mac