meh....the warranty was voided as soon as he cracked his old screen. Its a 6, so I really don't see how they would have known his screen had been replaced unless the OP did a sloppy repair job.
OP: There is nothing that you could have done to damage the cellular reception if everything went right. I'm assuming you disconnected the battery before removing the old screen, didn't use any metal tools and used only top quality parts. I'm also assuming you didn't do any damage by using the wrong screws. Also assuming that you didn't use unnecessary force when putting it back together.
What is possible is that when the customer dropped his phone, he did damage to the cellular system of his phone. Which again, would have voided his warranty.
meh....the warranty was voided as soon as he cracked his old screen. Its a 6, so I really don't see how they would have known his screen had been replaced unless the OP did a sloppy repair job.
OP: There is nothing that you could have done to damage the cellular reception if everything went right. I'm assuming you disconnected the battery before removing the old screen, didn't use any metal tools and used only top quality parts. I'm also assuming you didn't do any damage by using the wrong screws. Also assuming that you didn't use unnecessary force when putting it back together.
What is possible is that when the customer dropped his phone, he did damage to the cellular system of his phone. Which again, would have voided his warranty.
meh....the warranty was voided as soon as he cracked his old screen. Its a 6, so I really don't see how they would have known his screen had been replaced unless the OP did a sloppy repair job.
OP: There is nothing that you could have done to damage the cellular reception if everything went right. I'm assuming you disconnected the battery before removing the old screen, didn't use any metal tools and used only top quality parts. I'm also assuming you didn't do any damage by using the wrong screws. Also assuming that you didn't use unnecessary force when putting it back together.
What is possible is that when the customer dropped his phone, he did damage to the cellular system of his phone. Which again, would have voided his warranty.