FTVDB

Echo Dot 2nd Gen (2016)

Model AEOBC. Fire OS 6.5.7.4 (NS6574/7623), build 13121734532, recorded Aug 3, 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 6.5.7.4 (NS6574/7623)
Version Code 13121734532
Uploaded 2026-08-03
MD5 f1678283cc18d681740410883eee3e2c

Original public source URL

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https://d1s31zyz7dcc2d.cloudfront.net/2026/8/3/f49aaff7-dd63-4d9c-9e9a-c17498267de5/update-kindle-biscuit_puffin-NS6574_user_7623_0013121734532.bin Open source URL