FIRMWARE
Fire TV Stick 4K Max - 1st Gen (2021)
- 09:02 — Fire OS 7.6.8.8 (PS7688/4591) (code 32112766852, build PS7688.4591N)
https://d1s31zyz7dcc2d.cloudfront.net/2025/1/11/b3451c54-4a4c-4ba6-873a-a685c61b93b7/update-kindle-kara-PS7688_user_4591_0032112766852.bin