I will try to summarise this story quickly. My sister smashed her iPhone screen, took it to a non-apple shop in town and got the screen replaced, I noticed that the screen looked positioned wrong, probably a cheap part. I took it back to the place for her, they refunded the money and put her original smashed screen back on the phone. However now the screen intermittently stops working and I have to lock and unlock the phone to get it to respond again. I have a genius appointment tomorrow where I hope to just pay Apple for a screen replacement and be done with it, however I'm concerned that if I tell them or if they can tell by looking inside the phone that it has been operated on by someone else that they will refuse the repair, does anyone have any experience with a similar situation and know whether Apple will refuse a screen repair in these circumstances. Thanks in advance for any advice!