So I bought a Marshall CODE 50 a bit ago, and with nearly device I've tried - there seems to be a lot of issues with getting the gateway app to connect to the amplifier in general (most of the time it doesn't work - despite pairing just fine).
I've tried this on the Samsung Galaxy S8, iPad 5th generation, iPhone 7+ - The connection issues seem to stem from the apps use of Btle on these devices.
To experiment, I built an application that connects to the amplifier via bluetooth for Windows, and issues commands to the amplifier through the PC. This application uses a "classic" (SPP /RFCOMM) socket connection to send commands. The application works perfectly fine via this means - it can be seen running below:
As an experiment - is there a way to force the mobile applications (if it isn't using a btclassic / rfcomm connection) to use a btclassic connection as opposed to btle?
Thanks and all the best,
Principle Engineer, Pulse Interactive
Lead Software Engineer, Pirahna Bytes RED
Since the bluetooth problems are known by Marshall for over a year now and nothing happened since then, imo it would be the best if you could release your app for the public.
Maybe somebody who has expirience in programming for android/ios can also use your findings to implement it in an third party mobile app!?
Many thanks in advance!