Chosen Solution
I’ve tried the basic troubleshooting for this; this SIM works fine in other phones. Cleaning the SIM had no effect. Phone hard reset, no effect. Shimming the SIM card, no effect. Nothing out of the ordinary has happened to this phone; it was left on a countertop working fine after having just made a phone call, then a few hours later, it reports that there’s no SIM installed. Also tried other SIMs - no SIM is recognized in this phone. Network options also reset to no effect.
I’ve had similar issues with memory cards that I was able to resolve with a quick burst of compressed air inside the port. Might be worth a shot.
I read on reddit exactly same issue as mine, was eventually replaced by Google
I have no answers but we are having the same problem. Just doing a mega update and if anything changes will let you know. If you find a solution please let us know.