Update: It's better to use Bluetooth fake location app to unlock ALL functions.
Like AnyGo or iAnyGo or similar Apps. It's safe, easy, works on Win/Mac and can unlock everything within 3 minutes. But you need to pay for 1 month subscription.
- Power off the watch.
- Connect to your phone with Bluetooth mode, following the guide of App, you may need turn off/on location service.
- Move your location to USA, check your location on your phone in the Apple Maps app.
- Open Health Checklist on phone in the Health app and turn on everything.
- Connect your watch and check it.
For the details or trouble-shooting, see the comments below, like starting from https://gist.github.com/imReker/fba069c6cae7407509863b0ed78da2a7?permalink_comment_id=5889305#gistcomment-5889305
Below are plist files for Apple Watch to Enable ECG, Atrial Fibrillation(IRNF), Sleep Apnea Notify. No AfiB History.
After a lot of testing by the people in the comments, it looks like only ECG will work.
So just replace the first three files:
com.apple.HeartRate.notifications.plist
com.apple.HeartRate.plist
com.apple.private.health.feature-availability.plist

