I Reverse Engineered Hikvision's APK to Fix Push Notifications on GrapheneOS And Submitted a PR to Fix It For Everyone

I've been dealing with Hikvision camera apps not getting push notifications on GrapheneOS for over a year. I reluctantly ran LineageOS just to keep things working. Then, two days ago, everything Google-services-related went completely haywire on my phone after the TSA had it. That was the breaking point.

I revisited the issue out of pure frustration.

The Problem

Hikvision's apps check for the presence of com.google.android.gsf (Google Services Framework). If it's not there, they bail—even when GmsCore (Play Services) is installed and FCM is fully functional. Since GrapheneOS doesn't include GSF by default, the check always fails.

I reached out to GrapheneOS. They moved my thread to the 3rd-party-apps forum and locked it. I reached out to Hikvision/Annke. They never replied.