Hello! I didn't find information about my problem. It's not mentioned anywhere. I have Mi-One Plus with latest V4 build from miuiandroid.com. On past two weeks I was on my vacation in Turkey (gone there from Russia). In Turkey A-GPS positioning worked fine. Had no problems. When I returned to Russia, positioning based on mobile and Wi-Fi networks just stoped working. It works fine in Google Maps and other applications but not working in foursquare. I deleted all data from recovery and reflash firmware. Then tried it on a blank device and it's still the same result. Positioning by mobile networks works fine everywhere except foursquare. I ran out of ideas what else I can do. Will be appreciate for any help! Thx!