You really have to be careful with third-party iPhone repairs, especially in China. I had my phone repaired once, and when I got it back...it kind of worked, but they swapped out another part for something that was broken to ensure repeat business. That was in the iPhone 1 days though.
Yes, I'm old. This was in 2009 I think (I bought it in 2007). The e-markets are a lot different now (you can still find obscure shady offices repairing older hardware), and iPhone repairers that were scamming people are probably long gone.
