Brightness Drift
Brightness keeps sliding back to 20%.
Download shortcut⏱ 40s setup
Open this page in Safari on an iPhone. The file goes straight into Shortcuts.
What happens
At most once an hour, when they open one of their everyday apps, screen brightness slides down to 20%. They turn it up. An hour later it’s dim again.
Setup
- Open the download on their phone (or AirDrop it over) and tap Add Shortcut.
- Long-press it in Shortcuts → All Shortcuts → Rename and call it Brightness Helper, so it doesn’t give itself away.
- Shortcuts → Automation → + → App, pick 3–4 apps they open all day and choose Is Opened, select Run Immediately, tap Next and choose the shortcut.
- Run it once now and tap Always Allow on every prompt, or the prank fizzles on a permission dialog later.
Undo
Open Shortcuts → Automation, swipe left on the automation and tap Delete. Then delete the shortcut.