Device and app evidence
Amazon Fire TV 4-Series (2025) · IPTV setup and compatibility
This 4-Series uses Fire OS 8. Amazon lists its older 2021 4-Series under a different build and Fire OS 7.
This 4-Series uses Fire OS 8. Amazon lists its older 2021 4-Series under a different build and Fire OS 7.
Confirm the exact product or platform
| Check | Manufacturer or publisher evidence |
|---|---|
| Platform | Fire OS |
| Publisher | Amazon |
| Applicable version | Fire OS 8 |
| Build model | AFTNA1322D / AFTNA67200 |
| Manufacturer-listed OS | Fire OS 8 |
| Android API level | 30 |
| Earlier 4-Series build | AFTTI43 |
What to do on your device
- Identify the hardware from the About panel and use the correct supported app baseline.
- Play one supported item in the built-in app and on an external HDMI player if only one input reports a 4K issue. The two paths have different variables.
Test the viewing task
Use one authorized programme with a known audio or caption track. Check the same task after the documented change. If the result differs, report the model, OS or app version and the format or connection that the guide above applies to.