I was thinking of sharing a picture, but my camera quality is so bad that it wouldn’t really help. It seems like the issue might be with the display, since I can feel the vibration when I long tap the screen.
Edit: just after posting, the display came back for a short time, then the blue tint showed up again.
Jesse said:
I’d suggest reaching out to the person who sold it to you, or if it’s been too long, contact the warranty support.
I got it from Amazon, so I guess I should get in touch with their customer support. By the way, do you think it could be caused by water getting inside?