Bolt Module to be connected

Where I will find Bolt Module’s password?

In the bolt app in smartphone

By default it will be BOLT1234 I think

It is there on your phone. Check wifi networks and you will find the BOLT wifi network. There you will also get the password. In fact, you need not know the password of your BOLT wifi. Just open the Bolt IoT mobile app and follow the instructions in the App to set it up.