Big burn marks iPhone 4s
Hello IFixit,
A customer came by with his Iphone 4s and showed me something I have never seen before:
http://postimg.org/image/4975dze31/
He explained: it started with a little bit in the corner and just increased bit by bit.
It is still functional so touchscreen is working normally.
Can anyone explain what this is and where it is coming from?
Es esta una buena pregunta?