1. Unplug and Reconnect the Device. One of the first fixes to try when your accessory is not supported is to unplug and reconnect the accessory. Tap the Dismiss button to clear the alert and pull the accessory out of your iPhone's Lightning port. Then, plug it back in to see if the same alert appears. Try Connecting The Device Again. The first thing to do when your iPhone says “This accessory may not be supported” is try connecting it again. Tap the Dismiss button and pull your accessory out of your iPhone’s Lightning port. Plug it back in to see if the same pop-up appears. The list of supported devices for 2021 includes the iPhone SE, 6S, 7, 8, X, XR, XS, XS Max, 11, 11 Pro, 11 Pro Max, 12 Mini, 12, 12 Pro and 12 Pro Max. Various "Plus" versions of each of these models will also still receive Apple updates at least until the release of iOS 15. This means the iOS 16-supported iPhone 8 and iPhone X are no longer part of the update cycle. Related Plus, Apple still sells the older iPhone 14 and iPhone 13. Lastly, there’s the iPhone SE Apple is facing backlash from users after it announced that iOS 16, its next major release of iOS destined for release this fall, will not be supported by the iPhone 7 and iPhone 7 Plus. Despite being 4 years old, the iPhone 7 and 7 Plus are still supported by Apple and receive all the latest security updates, new emoji, and software features from major updates. For instance, iOS 13 introduced features like a system wide dark mode, new photo and video editing tools, a handful of revamped stock apps. The most glaring connectivity omission on the iPhone 7 is lack of 5G support. It tops out at 4G LTE speeds, with 3G as a fallback. However, according to Opensignal‘s February 2023 USA 5G User Experience Report, average 5G download speeds on major carriers like Verizon and AT&T are only between 50-90 Mbps. Back up your iPhone. After you've made a backup, erase your iPhone. Restore your iPhone from the backup you've just made. Get help. You may see this message on your computer or iPhone: "The SIM card inserted in this iPhone does not appear to be supported. Only compatible SIM cards from a supported network provider may be used to activate iPhone. fxrA.

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