[Dfu-util] Re: Zephyr DFU over USB Not Swapping

The file contents is undefined in the DFU spec. There could hypothetically be a bootloader on some target, which requires data to be in hex format. Therefore dfu-util cannot make any assumptions on the contents/formatting of the data. If at all, the target device would need to have such checks and reject it. -- Sent from a mobile device. Please excuse my brevity.