Hai ,
I need to update nrf52840 over ble from esp32 . first i tried with app , firmware gets updated .. as per the dfu protocol i understood flow and tried to writing data to the characteristic step by step from esp32.i can able to send and get responses from nrf .now i m strucking in sending bin file ,when sending the bin file through app ,the objects gets splitting into several objects. now my question is how can i send the bin file from esp32 .??