FYI iPhone "No Sim" Error Message-Problem Fixed!

Hello peeps. Just a friendly little FYI if you are an iPhone user. I dropped my phone today on floor of garage (with it's heavy duty cover on it). It wasn't working and wouldn't allow me to make calls. It said "No Sim." So, I went to my "Settings" and turned on the "airplane" mode for about 20 seconds. Then I turned the "Airplane" mode off again and now my phone is up and running. Hallelujah and no expensive trip to the AT&T store!!! A 20 second fix and no service fee! Woot! Woot! Thought I'd share the knowledge and love and pay it forward! :)