As the title

1.win+R Steam://nav/console

2.Input:"download_depot 945710 945711 6174072019105478592";

And then press "enter" (1.1.5)or

Input:"download_depot 945710 945711 7393288950949084575";

And then press "enter" (1.1.1)

3.Waiting for download,Download progress wont be shown on the steam ,But you can check on "Task Manager"to see if it is downloading.

4.After downloading,it wll give you a address ：

5.Follow the given path to find the game's directory, then copy everything in this folder and overwrite your original game directory. When you open the game, you will find that it has been successfully updated.

If you encounter any issues during the process, feel free to leave a comment below.