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Echo Flex (2019)

Model AEOCR. Fire OS 6.5.7.3 (NS6573/7595), build 13054618500, recorded Jul 3, 2026.

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

Version Name Fire OS 6.5.7.3 (NS6573/7595)
Version Code 13054618500
Uploaded 2026-07-03
MD5 23fc687c5cab5d7a9376047dd0e3a593

Original public source URL

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https://d1s31zyz7dcc2d.cloudfront.net/2026/7/3/6a589e84-4943-4948-8c79-2c60ae9fd8c1/update-kindle-croissant-NS6573_user_7595_0013054618500.bin Open source URL