Can't upload UF2 file to nrf52840

Hi, PJ!

Little by little I am following the NRF Academy courses.
I’ve just started the BLE one yesterday

And one thing triggered me there:
Important - The nRF Connect SDK contains an alternative controller implementation, the Zephyr Bluetooth LE Controller. However, we strongly recommend using the SoftDevice Controller, as it is specifically designed for the nRF52, nRF53 and nRF54 Series devices.

This referred me back to our discussion above about nrf connect + MCUBoot + Zephyr BLE controller vs nrf SDK (old) with SoftDevice.
I had a feeling, that MCUBoot + Zephyr BLE is the way to go with nrrf Connect, however, the Academy tells me the nRF connect recommedns the SoftDevice controller. Am I missing anything here as I do have a dissonance now? :slight_smile: