I'm not understanding what's exactly is going on here. I did a RESET on my XS Max > ERASE ALL CONTENTS AND SETTINGS. I did a complete set up, "set up as new" from start. As I set things up, I register my Apple I.D. and it asks me to go to one of my other Apple devices to approve this phone, the XS Max. My initial set up did not ask me for this step. I go to my MBA and sign into iCould and nothing appears. I go to my 5S sign into iCloud and the XS Max appears under DEVICES, but when I go to my XS Max, it's waiting for me to approve the device. Where? What is going on? There's also an option to RESET ENCRYPTED DATA. What happens if I do this? This XS Max is going back.