No problem at all, happy to help!
As for sending a .fota file to a device, there are two approaches that can be used.
The first will be UART based and communicated to the Bootloader portion of the firmware. The ‘
updater.py’ script that does this can be found in the ‘
Bootloader’ sample project under the scripts folder.
The second option is the DFU Service based method that requires you to have an already function FOTA sample firmware on your device (a full FOTA stack contains: Bootloader, Standalone FOTA DFU & BLE Library, Custom Firmware). The ‘
RSL FOTA’ application on Android and iOS is able to communicate this update with the Standalone FOTA DFU. If you wish to implement your own smartphone app, the best place to start is looking at the wireless update process within the ‘
fota’ project you have just build.