From your mobile phone:
Go to "Profile" and click the burgundy plus button above your name - now you can take selfies or select a suitable picture in your phone's gallery. Once uploaded, the picture will be sent for moderation that usually takes up to 5 minutes to check it.
From your computer:
Click on your profile picture at the top of the menu and choose "My profile" from the drop-down list. You will see the "Add profile picture" button - click on it and choose a suitable picture on your computer or take a new one using your webcam. Once uploaded, the picture will be sent for moderation that usually takes up to 5 minutes to check it.
Picture format requirements:
- minimum size - 600x600 pixels;
- acceptable formats: JPG, PNG, WEBP;
- file size - no more than 7 MB.
If your picture was not approved, it most likely violates the publishing rules.