My experience: I received my POCO F7 with HyperOS 2. Everything was set up correctly. The calendar app worked normally. Then I updated to HyperOS 3.0.4 (version: xiaomi.eu). After that, I updated to 3.0.9. Both versions worked fine. After updating to 3.0.11, many settings suddenly disappeared. Since then, I’ve been having issues with synchronization apps (DAVx5, etc.). They constantly report storage errors. Sometimes they write to the storage, and sometimes the storage isn’t available.Then...Read more