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I have zkteco k40 and I am using https://octolinker-demo.now.sh/carlosang2/ZKLibrary this php library to connect to it through
$zk = new ZKLibrary('192.168.1.102', 4370, 'TCP') and it is working well but
the problem is how to access the device that has password? Where should I add the password to access the k40?