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Fire 7 - 12th Gen (2022)

Model KFQUWI. Fire OS 8.3.3.7 (RS8337/3186), build 29461607044, recorded Sep 23, 2025.

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Firmware package identifier com.amazon.quartz.android.os. This page preserves the metadata associated with one public firmware source record.

Version Name Fire OS 8.3.3.7 (RS8337/3186)
Version Code 29461607044
Uploaded 2025-09-23
MD5 2ea7fa1885fef6c0a1e75ea81a301691

Original public source URL

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https://fireos-tablet-src.s3.us-west-2.amazonaws.com/01DwywcfWtLerpg55xZ650Mg8Z/update-kindle-Fire_7_12th_Gen-RS8337_user_3186_0029461607044.bin Open source URL