Transfer application over the air(OTA) to NRF51822

[Rajani]

I want to transfer application over the air(OTA) to NRF51822, with using nrf-toolbox in android mobile so please tell me step by step procedure. and how to setup nrfDK to bootloader mode, if it possible send me source code.

[dev_000]

You can check this thread here

[Rajani]

In nrfgo studio program softdevice , program application, program Bootloader , are available, program softdevice is used for uploading softdevice hex file, and program application is for uploading application hex file, what is the purpose of program bootloader, is it used for over the air dfu purpose?