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Winco model

BF5421

Winco lists 2 firmware files for the BF5421. This is the retail model name. Inside the firmware, Dahua uses its own device IDs, listed below, which can lead you to more compatible firmware.

Firmware files
2
Newest
Mar 14, 2020
Listed by
Winco
Dahua device IDs
8

Firmware

Dahua device IDs in this firmware

Compare these with the updateSerial your device reports. Each one links to every firmware found for that ID.