FIRMWARE
Fire TV Stick 4K - 1st Gen (2018)
- 19:00 — Fire OS 6.7.1.0 (NS6710/5784) (code 11577759876, build NS6710)
https://d1s31zyz7dcc2d.cloudfront.net/2025/3/6/120099aa-ea6d-45ff-9b41-d2ad13028fa7/update-kindle-mantis-NS6710_user_5784_0011577759876.bin