The affected devices were manufactured from Sept. 2016 to Feb. 2018 and were sold in China, Hong Kong, Japan, Macao, and the U.S It’s about models A1660 and A1780 sold in China, A1660 sold in Hobg Kong, Macao and the U.S including Porto Rico and the U.S. Virgin Islands and A1779 sold in Japan. Devices should be backed up to a computer via iTunes or to iCloud prior to sending it for repairs. Interested device owners can visit an Apple authorized service provider or Apple retail store, or they can contact Apple technical support. The link is https://www.apple.com/support/iphone-7-no-service/.
Customers are only eligible if their affected devices were purchased within the last two years. Apple also stipulates that it may require the customer to get their affected iPhones repaired in the country or region or purchase, and if the device has unrelated issues such as a cracked screen, customers will need to get that resolved first before going through the complimentary No Service repair. The company says only a “small percentage” of the iPhones 7 may be affected.