hi am working on DFU- OTA on nRF52833.In one of the query I found the method for to evaluate DFU- OTA on nRf52833 , am able to do that ,after connected to the Bluetooth I am sharing bin file from Nordic app. My query is How this bin is sharing, which ble stack it is using zephyr ble stack or Nordic ble stack/ . what all are the things are happening in background. Like here in that example (below link) using GATT Services but how code flow is running. Can you plz share some info on that.
query link - https://devzone.nordicsemi.com/guides/nrf-connect-sdk-guides/b/software/posts/ncs-dfu
