Today we will examine a very simple but delicate issue. It goes like this: “How many speakers does the iPhone have?” Let's talk about all the iPhone models and their number of speakers.
We will start with the very first iPhones and end with today's models, which are the flagships at the moment.
How many speakers does an iPhone have?
I would like to immediately get to the heart of the issue, and then a little reflection and additional information.
“On all models, including the iPhone 6S, there is one speaker installed.”
How many speakers on iPhone 4/4s/5/5s
Starting from the earliest iPhone models, that is, 3g/3gs, people could not really understand how many speakers were installed.
And when iPhone 4 came out and at the bottom of the phone you could see two grids on the right and left, then the number of users with this point of view increased significantly.
To be honest, I thought so myself when I first bought the phone. But if you turn on the song and listen, you will see that the sound is only coming from the right side.
And it doesn’t matter what generation of iPhone you have - 4.5 or 5S, they are all designed according to the same principle: microphone on the left, speaker on the right. 
The same can be said about the latest models 6 and 6S. Only now on the left we see just a dot, and on the right there are many holes.
So we said goodbye to the 3.5 mm headphone jack and Apple decided to immediately compensate for this with the presence of stereo speakers. 
Now a new era of iPhones begins, naturally starting with the iPhone 7 and 7 Plus, when there will be two speakers: one in our usual place, and the second in the area of the earpiece. The sound is now twice as cool.
Sound quality and speaker life
As you know, the main advantage of iPhones is music. Many of today's users of these smartphones bought the phones only because of the sound quality of the music.
The iPhone speaker is not very loud, I think some smartphones can get ahead in this. But the main position of the campaign is quality. It's better to have high-quality sound and build quality than a creaky speaker that will break in a year. 
As for the quality, I can only say positive reviews, because my iPhone 4s is already more than three years old, and I have never contacted a service center about this issue.
If you don’t drop it and make sure that as little moisture as possible gets in there, then your speaker will live happily ever after. The iPhone 7 is a little simpler; it already has moisture protection.
A technician who specializes in technical maintenance"Apple" gadgets. A person without professional knowledge in this area, may make assumptions or act at random, relying on chance. However, there are a number of manipulations that can be done at home to return the “mobile phone” sound.
Ways to solve the problem
If you notice that the left or right speaker is producing too much quiet sound, this may indicate various types of damage inside the device. In this case, a service center (SC) employee will help correct the situation.
Often, device owners are in no hurry to seek qualified help and spend time searching for information about why the speaker on the iPhone 4, 4s does not work, re-read numerous forum pages where “traditional craftsmen” share their experience in restoring the functionality of the device and give out free advice.
Those who want to open and repair an expensive gadget themselves, following video instructions from the Internet, are especially at risk. When following directions, people sometimes don’t even understand what they are doing. As a result, instead of one speaker, both no longer work, or problems of a different nature appear.
We offer three safe ways to fix the situation yourself if the iPhone 4 speaker does not work during a call:
- The volume level of speakers and headphones is adjusted separately; try turning up the volume, maybe you accidentally turned it down.
- Reboot your device, sometimes this helps.
- Reset the memory to factory default. After this, all parameters can be restored.
If none of the listed methods gives a positive result, call the service center and consult a specialist or immediately bring the iPhone to us to resolve the situation on the spot.
Operational assistance
On the way to the SC, remember whether the gadget was subjected to shocks or came into contact with a humid environment? Think about it: could it simply become clogged if you do not use a protective case or carry the gadget in the same bag with other things?
Tell the technician about your assumptions when you meet, this will greatly simplify the diagnosis. The most common causes of speaker problems are as follows:
- The audio channel is dirty. Instead of pure sound, there is a nasty hissing, wheezing and noise. This happens if the device has been in use for more than one month or is often located in places where dust accumulates.
- Water got in and the microcircuits oxidized.
- The phone fell and the sound chip came off.
- The headphone jack is jammed.
The master will eliminate any of the problems in front of you. If necessary, in service center We replace the speaker on iPhone 4, 4s at an affordable price. For repairs, original spare parts are used, and the services are covered by a guarantee.
Contact our service center for a free consultation and diagnosis! Entrust the restoration of your favorite iPhone to the masters of their craft!
If the speaker on your iPhone 4 doesn't work (they can hear you, but you can't), there are several ways to avoid this problem. Yes, this can happen, and no one is safe. The first actions can be aimed at solving this problem according to our advice.
LikBez - where and what is in the iPhone 4
Let's start with what and where is in the iPhone 4. There are two holes on the bottom. One of them is responsible for the microphone, the second for the built-in speaker. In the middle there is a connector for connecting a universal Apple cable. On top there is a power button and the culprit - a 3.5 mm jack. We are talking about the loss of sound not from the built-in speaker, but from the central one, which is located on the front panel, that is, when the interlocutor is not heard. Let's not confuse. And the second hole from the bottom - once again - is a microphone, not a stereo speaker.
Reason 1. The headphone plug is shorted
Yes, this can happen. When purchasing a new or even used iPhone 4, you are not immune from the fact that the 3.5 mm adapter, which is responsible for connecting the headset, may short out. And the only way to open it is by repeatedly plugging and pulling out the headset. In some cases it helped. It is advisable to pull it out sharply.
It should be understood that if this happened as a result of long-term use, then there is only one way out - replacing the upper audio cable, simultaneously with the 3.5 mm audio jack
Reason 2: Incorrect audio output source
Usually, after using Bluetooth headsets, audio transmission may not work correctly. Go to settings and disable Bluetooth headsets. This can happen when you buy a used iPhone 4.
Reason 3. You just don’t know very well about all the buttons on the iPhone
On the side of the iPhone there is a Mute button, which is responsible for muting the signal. It is possible that you turned your phone to the Mute position. Just if a red dot is displayed on it, move it to a different position. The lever is located next to the volume buttons and has two positions.
Reason 4. Software
You may have installed third party programs from Cydia or via iTunes. Remember what you installed recently, delete unnecessary programs and restart your phone. Sometimes rebooting your phone is usually helpful. This error occurs when installing the Apollo program. Delete it from your phone memory and delete all traces of it from file system phone using special utilities.
Reboot the phone - simultaneously hold down the center button Home button and the Power button.