When did Sun change Weibo's head to lying down?

It was changed around August 20th. On August 18, when Sun Fawei started blogging, his avatar was still his own. On August 20th, Weibo was changed to LAY's. On the same day, LAY sent a message to Weibo: Brother Hong Lei said that he missed me, haha, and told my eldest brother that he wanted me to relax. Hey, hey, it hurts. This seems to pave the way for Sun to change his image. At that time, everyone speculated that they might be gambling again. Sun Honglei lost, so he changed his avatar. But now this avatar has returned to Sun himself.