Android device showing up as two devices (offline and device) in ADB



  • Connecting my device to my PC and checking for connected device show the same device twice.

    C:\Program Files (x86)\Minimal ADB and Fastboot>adb devices
    List of devices attached
    21e8ed64090d7ece        offline
    21e8ed64090d7ece        device
    

    https://i.stack.imgur.com/iYAxp.png

    Running any command results in ADB spitting out an error:

    error: more than one device/emulator

    What do I do?

    Device: Samsung S9 (SM-G960F) (starlte) (Exynos)
    Android version: 12 (Arrow OS)
    Build number: SQ1D.220205.004



  • One of these solutions must work

    1. adb kill-server then trying adb commands again
    2. adb kill-server then turn ON and OFF usb debugging under dev options and trying adb commands again
    3. Possible solution 1 and 2 but do a reboot too
    4. Trying a different USB port in your computer
    5. Trying a different data cable

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