adb device offline with ADB wireless

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http://stackoverflow.com – For some reasons, my phone does not work anymore with cable. I saw on the Internet that it is possible to connect adb to the via Wifi, however I tried it and I get this: adb devices List of devices attached offline I search this on Google and it seems that it is related to Android 4.2.2. And indeed, my device is running Android 4.2.2. I didn't find any answers on Google for my problem since it is always with a cable, mine is on Wifi... Any idea how to solve this? (HowTos)