Control I2C relay board in Node Red Dashboard using in Smartphone

Hi, in my earlier post I got to know about displaying the Node-Red dashboard in Smartphone, As for making it works with the smartphone, as well as the Laptop, it should be running on the same network, but whenever I am trying access the dashboard IP: in the smartphone, Then the connection error message is displayed.

In my project, I am using the I2C Relay board which is connected with Arduino and with the help of serial node and button I am trying to switch on the relays

Any kind of suggestion on this one will be a great help. is the local loopback address of the device that is running node-red.
On your smartphone you should use the assigned IP address of that device instead (something like 192.168.0.x)

Thank you so much for reply, Now I open it on my smart phone