Dear Forum,
I already succeeded in using the Nordic Toolbox's DFU-App to update the firmware of a BM833 via secure bootloader. I found out, that the Android DFU App is available for personal compilation and customisation here:
https://github.com/NordicSemiconductor/Android-DFU-Library
As our development-partner uses Cordova, I wonder whether there exists an additional lib-version (apart from the provided react native, flutter and xamarin) that supports Cordova and whether anyone can provide a link to that.
Best regards,
Richard