IMPORTANT STEP YOU MAY NEED TO STOP DOWNLOAD!!!
I have a iPhone 6sPlus running iOS 12.3.1 I clicked to install/download iOS 13.7. When I saw it was going to take 12 hours to download, (I have a slow internet speed), I chose to stop it. I had to look up how to do it, and this page was one which I accessed. I turned off WiFi, (and subesquently turned on AirPlane mode), to stop the internet connection and temporarily pause the iOS 13.7 download. Then I went to "Settings >General >iPhone Storage"...unfortunately, the was no "iOS" selection in "Settings >General >iPhone Storage" to click on. When I went into "Settings >General >Software Update", it showed that the download was "paused"...below that there was a greyed out "Resume Download" What I finally figured out was, I NEEDED TO TURN MY INTERNET CONNECTION BACK ON!! . After re-connecting to the internet, (and after a brief wait), the download resumed, and THEN in "Settings >General >iPhone Storage", the iOS selection WAS AVAILABLE, I clicked on it, and the next page showed a "delete update" button which I clicked on and the problem was solved. 😄
I have a iPhone 6sPlus running iOS 12.3.1 I clicked to install/download iOS 13.7. When I saw it was going to take 12 hours to download, (I have a slow internet speed), I chose to stop it. I had to look up how to do it, and this page was one which I accessed. I turned off WiFi, (and subesquently turned on AirPlane mode), to stop the internet connection and temporarily pause the iOS 13.7 download. Then I went to "Settings >General >iPhone Storage"...unfortunately, the was no "iOS" selection in "Settings >General >iPhone Storage" to click on. When I went into "Settings >General >Software Update", it showed that the download was "paused"...below that there was a greyed out "Resume Download" What I finally figured out was, I NEEDED TO TURN MY INTERNET CONNECTION BACK ON!! . After re-connecting to the internet, (and after a brief wait), the download resumed, and THEN in "Settings >General >iPhone Storage", the iOS selection WAS AVAILABLE, I clicked on it, and the next page showed a "delete update" button which I clicked on and the problem was solved. 😄