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Echo Dot 2nd Gen (2016)

Model AEOBC. Fire OS 6.5.7.2 (NS6572/6448), build 12718780548, recorded Apr 11, 2026.

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

Version Name Fire OS 6.5.7.2 (NS6572/6448)
Version Code 12718780548
Uploaded 2026-04-11
MD5 e2ff5f2857d40e7bcbc66225ceaf8093

Original public source URL

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https://d1s31zyz7dcc2d.cloudfront.net/2026/4/11/e326243a-8c73-4a2d-bdfe-287f66ea5ca6/update-kindle-biscuit_puffin-NS6572_user_6448_0012718780548.bin Open source URL