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Aporte original por: snowdog850 ,

Título:

Where do I clean if I got finger oil on my parts?

Texto:

I had my iPhone into a shop for repairing when my power button failed.  After I got it back, I have very bad bluetooth reception and almost non-existent WiFi.  I remember that the shop did not use gloves.  I took it back there and they are denying all responsibility.

So I assume that there's probably some finger oil on various parts and I've seen all of the suggestions on here about cleaning "all contacts" with a degreaser or Windex.  But I don't know what "all contacts" are.  Can someone help me out and point them out?

Dispositivo:

iPhone 4 Verizon

Estatus:

open