If the microphone on your mobile device has failed, then it will be of little use. The caller will not hear, Google will be indifferent to your “OK”. But the situation is not critical - you can try to bring the device back to life on its own.
What is required?
To repair the microphone at home, you will need:
- crosshead screwdriver
- flat thin object (blunt blade, minus screwdriver)
- soldering iron and accessories for soldering (rosin, solder)
- stationery knife
If the problem is a software failure
First, we analyze the situation where nothing is needed to solder, and the apparatus’s indifference to your voice is caused by failures in operating system. Turn off the phone, remove the back cover (here you need a minus screwdriver), remove the battery, wait a bit and carry out the procedure in reverse order.
If the device still does not work, connect it to your computer and try to update or, if you have access to the Internet, download updates online. If a a new version The software is available, but you can not install it, you should contact service center.
To check if the problem is really in the microphone, plug in the headset. Then call - if they hear you, then the complexity is really with the sound system of the device.
Change the microphone
First, find the right microphone for your device - at the flea market or at a service center.
Next, proceed directly to the replacement process.
- Remove the cover, take out the battery, SIM card, memory card.
- Armed with a screwdriver, looking for screws and other fasteners.
- Carefully remove the parts of the case that block access to the board. When you get rid of them, look for a microphone - it is small and round, looks like a tablet, attached to the phone with two wires. Usually the manufacturer provides for it a special groove in the device. Wires - red and black.
- We take out the old microphone, gently unsolder it, and in its place we solder a new one, after which you must be heard again. When installing, be careful not to lose the screws.
Useful information
If water gets into the microphone - turn off the device, remove the battery and dry it during the day. On some devices there are two - one is intended for direct conversations, the second for speakerphone or noise suppression. Do not forget to test performance in both modes.
Microphone not workingessentially makes your mobile device almost useless. Thus, you have 2 outputs: 1 - take your device to, 2 - try to replace the microphone yourself.
With a few tools and attention to detail, you can repair a phone that has mIC is not working.
For microphone repair at home you will need:
- Philips Phillips screwdriver
- Blade (blunt) or other flat object
Instructions or what to do if the microphone does not work on the phone:
1) Software troubleshooting
Restart the phone to make sure that the problem with the microphone is not software malfunctioning. Remove the battery, wait 10 seconds, then insert it back into the phone. Make a test call, maybe your problem has already been solved.
If the microphone is still not working, connect the phone to the computer with a USB cable and make sure that latest version software and drivers are installed. If your phone does not have a USB cable or cannot be synchronized with a computer, take it to the manufacturer’s service center and ask the employees to do it for you.
If possible, connect the device’s Bluetooth headset to make sure there is a problem with the microphone. If, after making a test call, the person at the other end hears you, then the cell phone microphone is damaged or defective and needs to be replaced.
2) Microphone replacement
Replacement part. For starters, you should find and purchase a spare mobile phone microphone. Look for sites on the Internet where it is possible to buy a used version of your phone, thus you will get an inexpensive and working microphone or look directly for sites selling spare parts for phones.
Replacement process.Remove the battery cover, remove the battery and memory card from the phone and set them aside. Locate all the small cog screws and remove them. Use a blade or something flat to detach the body parts of the phone. Set the case aside.
Find a set of screws that connect the frames and the motherboard. Remove these bolts and set them aside. Take the front panel off motherboard and keyboards, if any. Look for a small round black thing at the bottom of the phone - this is the microphone. Remove the old microphone, and put the new one in its place.
3) Build
Now we work in the opposite direction to assemble the phone. Making a test call.
If during the operation of the phone you notice that there are problems with the microphone, then this is a serious reason to contact an experienced specialist. Do not attempt to repair the device yourself. Without the necessary special equipment and experience, you are unlikely to achieve the desired result. It would be better if you entrust the elimination of this kind of problem to a competent specialist. This is the level of employees working in our workshop. We will always be glad to see you! Be sure that after visiting us your phone will work as before and even better.
Important: in our telemama service center you will find the lowest prices for all types of service and for original components. All because we get all the material needed for the repair directly from the manufacturer. Our regular customers have good discounts, and for everyone else we have a rather interesting offer: if you find a price somewhere lower than ours, we will definitely lower the cost for our services for you. Each result of the repair, we certainly support the issuance of a long warranty, which has a validity period of 1 year.
Why the microphone does not work on the phone
As a rule, problems with a microphone appear for the following reasons:
- In most cases, the microphone itself fails. If so, it should be replaced. In our service center Telemama this procedure does not take much time, since we always have spare parts at hand.
- It is possible that there was a malfunction due to poor contact with the printed circuit board, perhaps there is a corrosive coating. In this case, you need to diagnose the device, using the diagnostics, you can determine the exact cause of the problem.
- Also this problem Could arise at failure of a chip of control of a sound. If so, then this situation can be eliminated, as in the previous case, by replacing the damaged part.
- Moisture or other mechanical damage can cause other problems that will lead the entire phone or its individual parts out of normal operation. To identify any problems that have occurred, it is necessary to diagnose the device.
If you need to repair your mobile phone, come to us, we will fix everything!
As a rule, when the owner of the phone complains that no one hears him or he hears very badly. With detailed verification, you can diagnose the following:
- the microphone does not work at all.
There may be several reasons. One of the common ones is the clogging of the sound guide channel in the housing. samsung phone (Users usually say: - I got a hole there!). As a rule, over time, dirt, dust, small foreign objects will be packed into it. When cleaning the sound guide, the "talkativeness" of the microphone returns.
This flaw has some phones of the folding type, in which the sound guide channel is made in one of the rubber shock absorbers installed in the bottom of the phone and which are designed to soften the blow when closing the phone, as well as to protect the display from scratching the keyboard. Over time, the material of these same shock absorbers becomes very soft and sticky. They simply flatten out under the influence of the lid of the phone and this sound guide completely sticks together. In this case, piercing the hole gives a very short-term result. This defect is typical, for example, for the Samsung X450 phone. Bad shock absorbers are replaced with new or similar ones from other phones that fit and have a hole - a sound guide.
Second common defect there are oxides of the microphone circuit. They can be either near the microphone or in the system connector for connecting a headset. Even small, but can still disrupt the microphone. It is often enough to clean the oxides and the microphone starts working. However, if the water got into the microphone itself, then it will have to be changed. Often, as a result of moisture ingress into the phone, the normal operation of the microphone is disrupted due to the elements of the strapping of the microphone circuits. This is especially true of elements such as varistors and zener diodes. Sometimes it is enough to remove them (with the cleaning of oxides on other elements, of course). Also, oxides like to hide under EMIF-filters (Electromagnetic Impulse Filter), which are quickly destroyed under the influence of moisture or simply fail without any external influences. In such cases, the EMI filter is replaced.
It happens that the phone indicates connected headset, although in fact it is not connected. In this case, the speaker is usually not working together with the microphone. This is due to all the same oxides as a result of moisture ingress into the system connector or under the glass of an EMIF filter as well as the headset connection identification circuit (different phones have different implementations, but usually through the contact group of the headset connector). Sometimes the cause of the included headset is an open circuit that identifies the connection of the headset connection as a result of the BGA soldering of the controller / processor.
The malfunction of the microphone itself is checked by replacing it with a deliberately working one.
- the microphone is very quiet. The reasons are the same as described above, but most often the microphone itself is faulty.
- a background is heard (usually a GSM tip) along with a voice. As a rule, the microphone is faulty or one of its chains is in the cliff.
It is eliminated by replacing the microphone with a working microphone or by checking and restoring the circuits of the microphone signal.
Check and replace the microphone in our will quickly and for a minimum of money, please contact)
