How to update Google play services on Xgimi H1 :

1.) Go to Settings-System Information window.Hold left button for cca 5sec until hidden menu appears, switch ADB value to the right until this symbol (I guess it means enabled) appears :
https://ibb.co/mDVe3b
2.) Go to wifi (or ethernet) settings and remember your IP address
3.) If on Windows extract this zip to C:\adb https://dl.google.com/android/repository/platform-tools-latest-windows.zip
4.) Download (https://www.apkmirror.com/apk/google-inc/google-play-services/google-play-services-11-9-51-release/google-play-services-11-9-51-230-177350961-android-apk-download/) and rename to GmsCore.apk and put to C:\adb folder
5.) Open CMD as administrator, then type inside "cd c:\adb"
6.) Issue this commands in Comand Prompt:
Adb connect youripaddress
Adb root
Adb connect youripaddress
Adb shell
setenforce 0
rm -rf /system/priv-app/GmsCore/GmsCore.apk
Exit
Adb push c:\adb\GmsCore.apk system/priv-app/GmsCore/
Adb disconnect youripaddress
7.) Turn off ADB in hidden menu and reboot

You have latest Google play services installed

By Mirko1312