No SIM in iPhone 5s but still using battery looking for cell coverage
My daughter has an iPhone 5s with no Sim card. She’s used this phone without a SIM card as a Wi-Fi only iPod for a couple of years. Because there is no Sim card, the ”Cellular” option in settings is grayed out.
We recently traveled to a location that had no cellular service for any of the family. We noticed her battery was draining faster than normal. When we looked at the battery stats, it showed that a large percentage of her usage had been for “No Cell Coverage.”
This does not happen when we are in an area with cell phone service. She’s on iOS 11.3.1 (15E302).
Any ideas for how to stop the phone for checking for cell coverage when she doesn’t have a SIM card?
iPad Air, iOS 9.3.2