What state are the indicators showing now? Did you ever get the indicators to blink in the 3rd or 4th quadrant?
https://support.rachio.com/hc/en-us/articles/360003815533-Light-Codes-Rachio-3-
If not, what happened when you tried to provision it with a laptop or desktop computer?
If yes, what happened when you tried to set it up, using a second mobile device as a temporary hotspot?