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7Vx22

ENS Security lists 2 firmware files for the 7Vx22. 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
Apr 2, 2018
Listed by
ENS Security
Dahua device IDs
37

Vendor notes

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.