R28 Door Phone Administrator Guide
The firmware is different between the hardware version1 and hardware version 2.
Go to Web > Status > Firmware Version.
20.X.X.X is hardware version 1.
220.X.X.X
is hardware version 2.
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Hardware Version
The firmware is different between the hardware version1 and hardware version 2.
Go to Web > Status > Firmware Version.
If the hardware version is 220.x, then the device is hardware version 2.