Apple recently confirmed a small percentage of iPhone 7 devices had a component fail on the main logic board, causing the device to show “No Service” even if cellular coverage is available. Apple will repair impacted devices, free of charge for customers, by sending their device to an Apple Repair Center.
iPhone 7 – No other iPhone versions, including the iPhone 7 Plus, are eligible for this service
Model A1660 – The model can be found on the back of the device.
SeaWolf Sprint Community Manager & Customer Advocate Captain of the Vicious Cream-puff I encourage you to post your questions on the community, give Kudos when earned and always mark the correct answer as "Accepted Solution".