Hi,
We currently update firmware using the official nRF Connect app with a .bin file over BLE, and that works for us.
Our team needs to implement the same DFU flow in our own Android and iOS apps. Could you please point us to the official documentation and any recommended example or reference applications Nordic provides for mobile DFU?
Firmware uses MCUboot + MCUmgr (SMP) over BLE on nRF Connect SDK v2.9.x
Thank you.