Now you could connect to free Wi-Fi at 

• Kamiennaja Horka (Kamennaya Gorka)
• Mahilioŭslaja (Magiliouskaya)

In total Free Wi-Fi Minsk network in metro available at 12 metro stations.

The map of all Free Wi-Fi Minsk hotspots around the city: https://freewifiminsk.by/en/#map