I love walking and bike-riding in the fall, whether in the city or the country. The cooler temperatures make me feel much more energetic than in summer.
I had the same problem, but found a different solution that worked at https://www.iphonelife.com/content/how-to-fix-imessage-waiting-activation-error-iphone-4-different-solutions# The fourth solution, that involved resetting network settings, did it ...