I finally found the good-Internet-connection spot! Here's some landscapes which I caught on the way.
I successfully visited several large cities (Chita, Ulan-Ude, Irkutsk), sailed on a ferry to Olkhon Island. I have been standing in a tent on the cold shore for several days. It turned out to be so cold to sleep in the car that I put on all my clothes and wrapped myself in all the rags that I had, but it still froze as hell. Beautiful uninhabited views pay off all the suffering, really.