I have downloaded the Balena OS file for Raspberry Pi 4-4GB (balena-cloud-balena-sound-raspberrypi4-64-2.53.12+rev1-v11.9.9.img), while loading it on the RPI, it gets to the large green cube logo and is now 90 minutes without any screen activity,(there is WiFi activity). How long does it take to download the Bluetooth Audio Service?
(Now that you have balenaOS up and running on your Raspberry Pi, it will start to download and prepare the Bluetooth Audio service.)