Interesting web page about electronics repair in other cultures, such as China and Africa:
Need spare parts? Cannibalize another cellphone.
Schematic? Service manual? It's easier to ask a friend about common faults and repair techniques. (Hmmm. Come to think of it, that's what we do here!)
Authorized repair station? Yes, they exist, but there are a lot more independent technicians doing a lot more business on the streets. Cheaper, quicker, more available.