Echo Flex (2019)
Model AEOCR. Fire OS 6.5.7.1 (NS6571/6193), build 12584497540, recorded Oct 26, 2025.
Firmware package identifier com.amazon.croissant.android.os. This page preserves the metadata
associated with one public firmware source record.
| Version Name | Fire OS 6.5.7.1 (NS6571/6193) |
| Version Code | 12584497540 |
| Uploaded | 2025-10-26 |
| MD5 | d186d5786b955455f8a684cb58f67df1 |
Original public source URL
FTVDB does not host, mirror, modify, proxy, or distribute this file. This record is public update metadata only.
https://d1s31zyz7dcc2d.cloudfront.net/2025/10/26/b443be82-8db1-4ffc-a3ce-5a1dbd1f1956/update-kindle-croissant-NS6571_user_6193_0012584497540.bin Open source URL