Problems getting a neglected spark back online

[kennethlimcp]

What colour is the Core blinking?

I would recommend this:

[Howto] Setup photon if docs step fail

Since the Getting started docs for Photon does not mention anything about failed setup using the mobile apps, here’s a guide for users experiencing out-of-the-box issue. MAC and WINDOWS The best tool is to use particle-cli and here’s some tutorial to install on your machine: Mac - Tutorial: Particle-cli on Mac OSX [26 Sep 2015] Windows - Tutorial: Particle-cli on Windows [07 Jun 2015] Once that is installed, ensure that the Photon is blinking blue [listening mode] and enter particle seria…