LG Device Not Listed in ADB Devices
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
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 tappingBuilder number) - Ensure USB debugging is enabled in the developer menu
- Go to
Settings->Tethering & networks-> switch onUSB 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.