I have an Xperia Z C6606 rooted

Android version 4.3

I have tried both 4.3 and 7 Android SDK.

I kept getting the error message "device '' not found" as shown in the below screenshot.

device not found

  • 1
    Have you enabled the ADB USB Debugging mode on the device?
    – Robert
    May 20, 2017 at 16:34

3 Answers 3


Please replace the platform tools API 23 file size 9 MB and remove the previous one. And remaining the same.

Your device will be visible.


I had the same problem.
The solution is to grant root access to ADB in Developer options. First of all you need to enable Developer options as explained on Android Studio then you enter Developer options as explained there as well.
If you run CyanogenMod/LineageOS you can easily allow root access for ADB as explained here.
Otherwise you have to do it via Terminal.


Also ensure you are connected to your PC as Mass Storage (UMS).

  • Mass storage is long obsoleted (starting with Android 4.0), so most devices won't even support it anymore. Apart from which, how should that be relevant? From the screenshot it rather looks like OP might have not installed the device-specific drivers.
    – Izzy
    Oct 9, 2017 at 10:27

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