1. As CNET reports, it is alleged that Apple repairs iPhones by only swapping defective parts, instead of swapping entire units - which they do in other countries.
Macworld.co.uk corroborates this:
"The programme claimed that Apple is breaking Chinese law by not replacing damaged iPhones with a completely new model. It maintained that Apple replaces parts of the iPhone but returns it with the old phones back cover"
If this claim is true, if Apple really do repairs rather than full unit swaps, this means that the entire service process takes longer - for the customer. Customers have to wait longer to get their working iPhones back.