One of my camera's "deviceType" got whacked in a firmware update, but the "updateSerial" is good.
Using the command provided above:
deviceType=IPC
hardwareVersion=1.00
processor=AX620D
serialNumber=9E09E25nunya
updateSerial=IPC-HFW5442E-ZE-0832
updateSerialCloudUpgrade=IPC-HFW5442E-ZE-0832
Another of the same camera type has the expected deviceType:
deviceType=IPC-B54IR-Z4E-S3
hardwareVersion=1.00
processor=AX620D
serialNumber=9K0D7ACnunya
updateSerial=IPC-HFW5442E-ZE-0832