My N7260 is not always ringing, vibration only how to do ah!

Users questions: Can normally answer the phone, but hands-free sound, and ring tones are not put out, no way can only vibration, but occasionally can suddenly release ring to, what sort of items, please do not say that the quality of Nokia? Only one year so the
Experts answer: you say the problem may not be cell phone quality, this is very likely Is the ring and contacts on the motherboard between the charring caused by the open to take on the alcohol wipe to be able to.
  • This information provided by the users.Thanks!