REM nrfutil settings generate --family NRF52840 --application examples\dfu\secure_dfu_test_images\uart\nrf52840\bootloader_secure_uart_debug_without_bonds_mbr.hex  --application-version 3 --bootloader-version 2 --bl-settings-version 2 settingscase.hex

REM ERASE
nrfjprog --eraseall
nrfjprog --program examples\dfu\secure_bootloader\pca10056_uart_debug\ses\Output\Release\Exe\secure_bootloader_uart_mbr_pca10056_debug.hex --chiperase
nrfjprog --program examples\dfu\secure_dfu_test_images\uart\nrf52840\mbr.hex
nrfjprog --reset

SLEEP 2
nrfutil dfu serial -pkg examples\dfu\secure_dfu_test_images\uart\nrf52840\blinky_mbr.zip -p COM7 -b 115200 -fc 0