N81 all the key failure, IC is the key problem or cable problem?

Users questions: Okay, I admit, little brother limited funds to buy the parallel, and only shop warranty! ! The arrow keys to find the phone the day before suddenly a problem (no water, nor Shuaiguo), such as the arrow keys will exit the program the next, and later reopened after the shutdown, all the keys are out of order, including the numeric keypad. But the slider and power button also React to slide on the slide can answer the call. Volume and camera keys can not be tested. Was sent to repair shops, he asked to stay mobile, so that he sent to the Department of Maintenance Technology. I had to agree, but yesterday he told me was bad cable, and cable are not covered under warranty. I have to charge 210 yuan. I immediately went to a nearby The repair shop (not that I buy a cell phone) ask, they say is key IC bad, what to do with cable. I would like to ask, the bad cable will show why the situation? Cable is too expensive. That store will not be deliberate to make money out? If so how can I do? I have not told them for now Cable. Thank you! ! !
Experts answer: bad cable may appear to be malfunctioning microphone handset and answer the phone when the other side is not heard your voice or other sound you can hear this as you suggest you buy a cell phone as soon as possible to your comparison shop for maintenance guaranteed If you have questions or Who need help, you can message or to my personal information leave your problems. I will do my ability to give you suggestions of. Give suggestions to your problems is my pleasure. Because I do not know where there are many, so if I do not know if you forgive me. Please also exhibitions. I wish you Happy, happy! !
  • This information provided by the users.Thanks!