Some older Mbz3 modules ship with an open, unsecured Wi-Fi network. This is especially common on smart plugs designed to be configured via an app (like Smart Life or Tuya). In this case, you do not need a password to connect initially; you simply join the "Mbz3_XXXX" SSID.
If you (or a previous owner) already completed setup but later performed a partial reset, the Mbz3 password might have been changed. Unfortunately, there is no way to "recover" a custom Mbz3 password. Your only option is a factory reset. Mbz3 Wifi Password
Using the default 12345678 password is convenient, but it is also extremely dangerous if you leave it unchanged. Here is why. Some older Mbz3 modules ship with an open,
Let us walk through a real-world scenario: You bought a smart light bulb. You turn it on, and it blinks rapidly. You open your phone's Wi-Fi settings and see "Mbz3." Here is what you do. If you (or a previous owner) already completed
That is correct. The Mbz3 network is not meant for internet access. Disconnect from Mbz3 and reconnect to your home Wi-Fi once setup is complete.
Many cheap IoT devices have unpatched vulnerabilities. If an attacker connects to your Mbz3 network (which is trivial with the default password), they can sometimes execute code, turning your smart bulb into a botnet participant.
Sometimes multiple similar networks appear (e.g., Mbz3, Mbz3_2.4G, Mbz3_5G). Ensure you are connecting to the correct one. Most IoT devices only broadcast on 2.4 GHz. If your phone is on 5 GHz, you might not see the network at all.