After scraping user forums and Reddit threads, here are common improvements reported after an Aiwa firmware update:
Ensure location permissions are enabled for the Aiwa app (Android requires location access for Bluetooth scanning). Also, check that no other device is connected to the Aiwa speaker or earbuds.
For Aiwa mobile devices, you can usually find update options in the standard Android settings: > System > Advanced > System Update .
Once the download reaches 100%, the TV will prompt you to restart to apply the update. Firmware Upgrade | Aiwa.co - Dev