I have a forerunner 645 music. I was using the pip-boy-ish watch face and have been using it for years but when my watch updated to 7.20 this morning it broke. I get the IQ! error and even though I tried everything on this page both options and it wouldn't fix. https://support.garmin.com/en-US/?faq=nfeK0ZgFWu5WGHBTcKCNS9 .
I love this watch face and would really appreciate a way to go back to a previous update until the next one rolls out fixing this issue. Does anyone know how to do this?