Share your experience!
My device has a small yellow spot on the left corner of the screen, it only shows when the screen is white, what should I do?
Meu aparelho está com uma pequena mancha amarela no canto esquerdo da tela, só mostra quando a tela está branca, o que devo fazer?
I've edited your post as this is an English only forum, you can use Google Translate to reply and/or post.
I'm sorry to hear about the issue, that's a hardware issue, either the phone was dropped or water damage, you could use it as is, or you can contact Sony to get it inspected/repaired >>>