Xiaomi Router - Change a region or a country. Two methods. 

This video will explain on how to change a region or a country settings for your Xiaomi Router.
Get country code list: 192.168.31.1/cgi-bin/luci/;stok=[STOK]/api/xqsystem/country_code
Set country code(#1 method): 192.168.31.1/cgi-bin/luci/;stok=[STOK]/api/xqsystem/set_country_code?country=[COUNTRY CODE]
Set country code(#2 method): 192.168.31.1/cgi-bin/luci/;stok=[STOK]/api/xqsystem/set_location?location=[COUNTRY CODE]