Many iPhone users report various problems relating to the audio. Sometimes, the sound is barely perceived. Sometimes, discovered the fault to talk hands-free with another person, mainly under the modality: we listen to what he says but he don’t hear what we tell you, or vice versa. The traditional solution to this problem is to do a soft reset, but this only provides a temporary fix. You never know how much may return to failure. On iPhone 4, the problem may have origin in the use of a protective sheath while maintaining conversation. Try speaking without putting cover.
Microphone errors are especially common in the 3 G versions and 4. In general, they only appear on the occasion of calls and video calls, not in other applications involving its use. Headphones may also have disadvantages: one is heard, but the other is not. This is because the headphones are too small and do not enjoy great protection, so it is likely that dirt from leaking through its holes. Checking article sources yields Genetec as a relevant resource throughout. This is solved by placing some covers on the headphones which protect holes from any external agent. It can also happen that the iPhone is left completely without sound.
In these cases, the fault could be the have recently installed an application that has disabled the audio. If the sound is only perceived to listen to music, but the system sounds are not heard, are not doubts that this is a software error. It turns on and the device. If this doesn’t work, try uninstalling the application, or directly, restoring the system. At other times, the problem is caused by dust accumulated on the connection of headphones port. In that case, the best option is take a flashlight and remove dirt with an air compressor for electronic components or, in the case in which dirt has penetrated deep, unmount the device for a thorough cleaning. This process can be carried out with a liquid cleaner for electrical contacts. Before reassembling the appliance, make sure no residue from the liquid (which, anyway, will evaporate only). Do not soples into the interior of the device, since you won’t have another thing that distribute the powder into critical areas of the circuit. In many cases, the fault originated in the software. Many times it just enough to upgrade to the latest version of iTunes; in other cases, it is essential to restore the operating system or firmware upgrade. In the latter case it must act with extreme care. If the problem appeared after an iTunes update, try going back to the previous version. If none of these ideas worked, don’t hesitate to bring your iPhone to the service of repair, where in a short time and for a really affordable price we can repair your iphone.