Sony Ericsson k300c navigation key issues

Users questions:I k300c was bought less than four months, and now navigation keys on the already well used, and sometimes when it does not send text messages that response, especially down the time. After several moments, but when you boot the screen is not bright, you look a little further sliding the navigation key, it will light up, how is this going on, ah, isWhere the problems ah. Normally and were very slow, send text messages sometimes played too for a long time before the words out of
Experts answer: you enter the right * * left * zoco enter the test menu to test the navigation key, their own adjustments like, if it still does not work, then only Replacement navigation keys, and usually less attention to navigation keys,Can use the keyboard on the keyboard, and strive to increase its life span, while the machine itself does not reflect the rapid pace of
  • This information provided by the users.Thanks!