Fire TV Stick 4K - 2nd Gen (2023)
Firmware version details.
| Version Name | Fire OS 8.1.5.8 (RS8158/4105) |
| Version Code | 30468475268 |
| Uploaded | 2025-11-26 |
| Download URL | https://d1s31zyz7dcc2d.cloudfront.net/2025/11/26/cdc2c5e6-5391-40b8-ae58-a5527838421c/update-kindle-karat-RS8158_user_4105_0030468475268.bin |
| MD5 | 0362f41bca476793af4b63dea0146939 |