Cellular error

Max920 wrote:

After update, phone doesn’t work says cellular error

click here If you see a Cellular, Ultra Wideband, or Apple Pay Issue message after an iOS update or restart - Apple Support

Same thing here cellular stopped working immediately following iOS 16.3.1 update. Apple Store ran a diagnostic and said the cellular is broken and it’s irreparable.

Same thing happened to me. Everything was working fine till update 16.3.1 then cellular error. Apple says it's a hardware failure that the update picked up on, but find that hard to believe. Expensive update as I was told $425. to fix.