USB debugging is a connection mode on Android devices which allow a USB connected computer to interact with the device. This can be used to e.g.

  • transfer data between the computer and the device
  • reading log data from the device
  • execute commands directly on the device
  • debug applications running on the device

More details can be found e.g. in our tag-wiki.

By default, USB debugging is disabled with stock ROMs (some custom ROMs however have it enabled by default). To toggle it on or off, you can find the corresponding switch in Settings › Development – a section originally hidden with Android 4.2 and up. You can make this section visible by going to Settings › About device and "hammering" the entry telling your ROM's build version until a toast-message congratulates you for having become a developer.

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