If you are trying to remote debug an Android phone, but Chrome Dev tools won’t detect the device, try this:
Download the Android SDK. Unzip it. The adb folder should be called something like “adt-bundle-windows-x86_64-20140702”.
Here’s how I fixed it (Windows 7).
1. Open command prompt and change directory to the adb folder. In my machine, its:
2. Run adb manually:
3. Detect the devices:
4. Check the inspect devices screen in chrome now and you should have the connected devices listed.
Hope this helps.