The issue is probably chips or cracks on the back glass or sometimes the front.
They almost didn’t work on my daughter’s phone because of a tiny nick on front corner for fear of it spiderwebbing when they opened it. And some phones broken back glass is game over since it’s all glued to that surface.
They almost didn’t work on my daughter’s phone because of a tiny nick on front corner for fear of it spiderwebbing when they opened it. And some phones broken back glass is game over since it’s all glued to that surface.