"Pressing power button 5 times in quick succession" doesn't work on my iPhone 8 Plus running iOS 12. To achieve the same effect, I need to hold the power button and one of the volume buttons for a couple of seconds.
I am interested to have the auto update feature so I clicked the link of Omaha. I felt dizzy that it’s so complicated that the author (of the article, not of Omaha) is charging monthly subscription fee for helping you do it. No thank you, I’ll just check my remote URL and replace my exe.