I am trying to recover data from my phone (Galaxy S3 mini) which screen is cracked. I want to do this using adb. But my device is unauthorized.

How can I solve this? I don't have acess to the device directly therefore I'm not able to turn on USB debugging.

 C:\Program Files (x86)\Android\sdk\platform-tools>adb devices
    List of devices attached
    007667324ccb229b        unauthorized

I resolved the problem entering the recovery mode by pressing "home", "volume up" and "power" buttons at the same time.

Once in recovery mode adb recognized my device and I was able to use the command adb pull /sdcard/ which copied the sdcard to content to my PC

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