Wechat version: 7.0.6
Demo mobile phone: Xiaomi Note3
Mobile phone version: MIUI 9.2
Step 1: Find and open WeChat first.
Step 2: Then find "I" in the lower right corner and click.
Step 3: Click on the position of the top avatar.
Step 4: Click "Avatar" in the new window.
Step 5: Then select your favorite picture and click.
Step 6: Finally, everyone found themselves with a new avatar.