Hi,
we're using Zephyr for providing the HCI for a NRF52 chip.
The example from samples/bluetooth/hci_uart is working
very well.

However the flashing is done using jtag (the integrated Segger chip
on the PAC10040 dev board).

Is there an option in Zephyr to have a bootloader that would support
flashing firmware through UART?

Be Well,
Alan