Jlink to NRF52

[Chad]

I know this might be a dumb question to you all, I am first time doing this sort of work

How to connect Jlink to NRF52? I need to flash a custom built BLE board with new firmware.

The option that is been provided to me is as below

1: Connect NRF52 To custom board through Pogo pins 2: Connect Jlink to Computer

I do not understand how Jlink talks with NRF52 and updated the Custom Board with out any connection.

Appreciate your help

[Matt]

The diagram here (devzone.nordicsemi.com/.../) may help too.

[Chad]

thanks for your help, I have connected the device as per above link. my computer has detected the board and able a D drive. I have dropped my file in that folder . The Nrf52 Board has changed with my program but the 3rd party board has not changed with the program. Can you pls guide me how to revert back the code from Nrf52 Board. And also the steps that I need to follow once I connect the Nrf52 board to 3rd party Board