After upgrading Xiaomi Mi 4LTE to MIUI 184.108.40.206 (MXDCNDB), the version of the android in the phone changed to 6.0.1. As a side effect, the watch LG G Watch R 1085 has disconnected from the phone, and on the phone itself Google Play Services panicked. Below is the way to restore the phone-to-watch connection.
Remove Google apps
Reboot to native Recovery and clear the cache (Wipe Cache).
Setup the Google Installer. It’s easy found in Mi store.
Remove Google account.