LG Device Not Listed in ADB Devices

Question

This is similar to the question already asked here:

Trouble connecting to LG phone with adb (Mac OS X 10.7.5)

But it does not seem to be resolved and I have a few additional details. I am attempting to connect a Verizon LG Optimus Exceed 2 to install an apk and debug, but it will not appear in the list when checking adb devices or running the device monitor. I have tried on both my Mac and Linux systems and the result is the same.

Developer options and USB debugging are enabled, and I have a Samsung Galaxy S3 that works perfectly fine running the same version of the OS (4.4.2). On Linux I created a udev rules file, but unsurprisingly this did not resolve the issue since it doesn't appear as a permissions issue, it just doesn't seem to find the device at all. It does however appear as an attached device in the file system, labeled "LGE Android Phone," and I can view its internal storage.

Any suggestions how to get adb to recognize the phone?

Answer 1

The problem is with the "do you trust this computer" dialog not being shown.

On LG Spirit 4G, the solution is as follows:

• Ensure the developer menu is enabled (through About phone -> Software info -> keep tapping Builder number)
• Ensure USB debugging is enabled in the developer menu
• Go to Settings -> Tethering & networks -> switch on USB tethering

This will finally trigger the "do you trust this computer" dialog and enable USB debugging.

Addendum: After your device is disconnected, the issue might appear again because USB tethering is automatically disabled.

Answer 2

Well, not sure if the OP is still looking for the answer. I happen to run into the same situation with Mac OS Yosemite and LG Optimus Exceed 2.

I did add the vendor ID to dab_usb.ini file, however, it still doesn't work. I also installed LG driver downloaded from LG website, still no good.

Finally, I switch the PC connection to "Internet connection" > ethernet. Then, it finally shows up in adb devices !!!