A. 1. Check the app's compatibility requirements in the App Store to ensure your device meets them. If your device is outdated, consider updating to a newer model if possible. 2. Look for alternative music streaming apps that support a wider range of devices.

B. 1. If you have access to another device that is compatible, try using the app on that device. 2. Consider using a web version of the service if available, as it may work on older devices through a browser.