I would like to ask, in the mobile phone when the video, only the back of the loudspeaker has a sound, very small, no front, what is the reason?
According to your description, the trouble may be caused by the following reasons:1, transmitter (MIC) bad.2, element leakage or variable. ?3, re welding or replacement audio (power, CPU).4, transmitter (MIC) to improve the working voltage.
No, of course not. The answer is on the phone.
There are so many factors that make the phone speaker sound small, and several major factors are excluded:First of all, the phone volume to the maximum, and then check whether the phone is wearing a protective sleeve, easy to put the speaker outside the phone extrusion, resulting in the emergence of the above phenomenon.Have you experienced any serious falls or water problems recently, which has led to confusion in the internal circuit of your cell phone?.Reset the phone, remove the phone software is running error caused by the bad phenomenon, the mobile phone back to the factory.In the above methods can not be ruled out, as soon as possible after the mobile phone to the aftermarket or professional mobile phone shop maintenance. Do not disassemble without cause can't fix the problem.
