RAK5010M_BG96_custom_code

Hello everyone.
Few days ago i bought an RAK5010-M with BG96 modem.
I am trying to understand how to put custom code inside because i need to test some different methods for data transmission and also test my own dashboard for communication with RAK5010. I check on forum about upgrading bootloader to adafruit nrf52840, but without success. I don’t have classic segger j-link, but i have nrf52840-DK board from nordic. Because i am new with RAK and RUI, can you please give me some advice how to start ?

Thank you very much.

Update…

I put adafruit last bootloader with nrf52840DK j-link programmer, changed variant.h, and few other things to make normal working. In few days i will put tutorial.

Thank you again.

Welcome to the forum @vdudukov

Looking forward to see your tutorial.