DFU Service enable

[Murugan]

Dear Nordic Team,

Thanks for supporting.

I am new one for DFU concept. How can i enable the DFU service in my source code.

[Einar Thorsrud]

The BLE & HCI/UART Bootloader/DFU example documentation covers most aspects of DFU in detail. DFU is quite complex, so I recommend you to take the time to walk through the example and documentation in detail. It covers both the principles and architecture of our DFU implementation, and how to configure the bootloader and adapt your application.