Connect to new wi-fi network

[ScruffR]

Try this
https://docs.particle.io/guide/getting-started/start/photon/#step-2-connect-with-your-smartphone

To put your device into Listening Mode to set up additional WiFi networks press and hold SETUP till the RGB LED turns blue.

Once you got your device in Listening Mode you can go with the official way (see above link) or use a third party way via this
http://photonsoftap.meteor.com/
Discussion can be found here

Photon softAP usage?

If you’re looking for an entirely in-browser SoftAP app for the Photon, you can try one out here. I made the interface using Meteor, but it all depends on a single JavaScript file (applied @brewnerd’s work in browserification, PR here) and so can be implemented using whatever JS framework you want (including none: just vanilla JS). More notes and a guide behind the implementation of this app can be found in my repo here. Interestingly, Meteor also allows you to trivially generate Android and…