I can't stream Prime Video on my old 3050X ROKU. It says "Application out of Date: This version of Amazon Instant Video app is no longer supported. To continue watching videos, on your remote, press the Home button. On the Settings menu, select System Update, and then select Check Now". I did this, updated, restarted ROKU, but I continue to get this message. Is my ROKU simply too old? Thanks.
Yes, I do see that one on the list of models that they have dropped support for. See this thread.
I’m having this same issue and bought a new roku and it is still giving the same message. After uninstalling, restarting, reinstalling on new device, Prime support says it is a roku issue even though both old and new roku give the same message.
@Katty, what is the model number displayed under Settings->System->About?