So I have been working with a photon and it was previously working on version 0.6.2 However, I recently updated the base OS to 1.1.0 and reflashed my old code. However, everytime I flash my old code, it’s wifi creds are getting wiped out and it is going in setup mode. I don’t have any WiFi.ClearCre…

If you have no external pull-up resistor applied you must use INPUT_PULLUP to avoid the floating pin to be read as LOW.

Wifi Creds getting reset

ScruffR May 22, 2019, 2:20pm 11

In this thread you’ll always find the links to the individual releases (and upgrading/downgrading instructions)
Particle Device OS Updates Thread

And this is where the releases can be found by tag

Topic		Replies	Views
[solved] Photon stops connecting with same WiFi after Firmware upgrade from 0.5.3 to 0.6.0 Troubleshooting	16	2646	March 10, 2017
WiFi.clearCredentials() not clearing credentials Troubleshooting	4	1357	September 15, 2015
Problems in handling WiFI credentials Firmware	7	1554	March 10, 2017
Setting/Reseting wifi credentials using Particle Javascript SDK Cloud	4	832	May 28, 2017
Photon won't update WiFi Credentials (particle keys doctor FAILS) Troubleshooting	0	710	November 10, 2017