Update ios of iphone5

The iPhone 5 cannot be updated past iOS 10.3.4. If you need/want to use apps that require a later version of iOS, you'll need to get a newer device.

iPhone 5 is waaaaay too old, under powered, no longer supported and completely incapable of being updated to the newer modern iOS versions.

Sorry, it's time to replace that now 8 year old iPhone with one more modern.