I still can't use my iphone 11. Yesterday I couldn't receive phones and messages and I started the new ios update, After it has finished, an error message appeared on my desktop, I tried all the steps, my itunes is with the latest version, tried to finish the update through itunes, but nothing happened, after that I erased all the content and settings and Tried to activate it but after I choose the region, the language and connect it with the wifi, a message appear - Unable to activate, An update is required to activate your iPhone. I can't do anythign else that shut it down. What should I do?