Why does adb return offline after the device string?

Question

I use \"adb devices\" to get following result. Only one device is connected to PC by USB, but we get 8 lines of result.

Could anyone suggest the reason?

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Answer 1

I've had a similar issue with one of my phones. I was unable to connect and use usb debugging on any of my computers. In the end, I had to restart the usb debugging on the phone manually [doing so using the Developer menu was not enough].

There's only one command you have to run on your phone [I did it using Terminal Emulator app]:

adb usb

And that was it.

Hope this helps someone in the future.