hi,dear engineers,
i use the example experimental_ble_app_buttonless_dfu of nRF5_SDK_13.0.0_04a0bfd, on the PCA10040 board,Now,i'm sure that I am flashed Softdevice,app,and bootloader,and the board work in the app.and well,the nRF connect v1.1 is connected to the board.
but when i use the nRF connect v1.1 to start DFU,it appear an error
i don't know why it do nothing and disconnect,it never enter the on_rw_authorize_req(),on_write(),on_hvc() in ble_dfu.c