DIY speaker repair on your phone

A mobile phone is a convenient and irreplaceable assistant. But it often happens that failures occur in his work and this cannot but upset.
For example, when the interlocutor is completely inaudible, although the speaker volume is set to maximum in the settings. This is due to the failure of the auditory speaker. The sound is either not audible at all or audible, but very weak.
Here, do not do it, replacing the speaker simply cannot be avoided.
This article details disassembling and replacing the speaker in a common smartphone.
You can find a speaker for your model in one of the online stores, of which there are plenty.
Sometimes the speaker may outwardly differ from the one in the phone, it may be analogs that will perfectly replace the original one. It so happens that they work even longer than branded ones.

In any case, it is better to first disassemble the phone and see what your speaker looks like, then you can be sure that you are ordering what you need.

So, first remove the back cover. Everyone knows how to do this on their phone. Usually it is kept on snaps.

Next, it's a little more complicated. It is necessary to remove the battery, SIM card and memory card.

Then, using a small straight or Phillips screwdriver, unscrew all the screws around the perimeter of the case.

When all the screws have been loosened with the plectrum - if you have one - remove the protective cover. It also has snaps.

Instead of a pick, you can use a sharpened piece of a plastic ruler or a plastic card.

This must be done carefully, making sure that the working part of the tool does not protrude into the body by more than 2 mm.

When the protective casing is removed, we find the earpiece.

It is soldered through a ribbon cable in two places.

Using a magnifying glass and a 25W soldering iron, you can easily remove a faulty speaker. You just need to sharpen the soldering iron tip in the shape of an awl. It is better to do this on an emery machine.
Heating the soldering iron and grabbing the speaker with your fingers, gently solder it.

Here is a dismantled speaker in the photo.

A similar Chinese analogue can serve as a replacement for the original speaker.

We clean the place where the speaker is installed from dust that penetrates from the outside through the holes on the case. Then we insert the speaker there and use tweezers to form the wires so that their ends fall on the soldering points.
Next, holding the wires, we solder them.

We wipe the place of soldering with cotton wool dipped in alcohol or cologne.

We put on a protective cover and insert a SIM card, we check the speaker's operation.

If everything is ok, fix the cover with screws.

Insert the memory card and snap the cover.

Now the phone is like new, if the problem recurs, we replace the speaker again in the same way. But so that the problem does not recur often, it is better to set the volume to an average value.

Let's consider one of the main reasons for the failure of a mobile phone: "various liquids hitting the board" does not turn on, a white screen or some buttons do not work. Of course, before opening the case, you need to know the cause of the breakdown. If one of the above is written, read on.

We open it, conduct a visual inspection for the presence of corrosion, dirt and other unnecessary substances.

First of all, we remove all plastic parts, in general, everything that can be removed is detached. Do not forget about the film with membrane-type keyboard buttons, we also peel it off (this is on other models, on ours the keyboard board is disconnected).

We take a cleansing liquid (such as alcohol, Kolosha gasoline, cologne), I use Isoprapanol, it does not have an unpleasant odor like Kolosha.

We take a toothbrush, who doesn't mind a new one, dip it in alcohol, and clean the board until it looks like new - especially the contacts for the display, the USB connector. Do not press too hard, some components may be demolished.

We cleaned it, now we take the flux, take a brush, smear it with flux near the microcircuits (more), put the hair dryer at 325 degrees and warm up all the microcircuits in a circle and in the middle, the distance from the outlet of the tip (nozzle) of the hair dryer to the surface of the microcircuit is 1.5 cm. it is better and more economical to take a medium diameter.

We heat to such an extent that the tin melts at the components located around the perimeter (adjust the temperature to 330 degrees). Very, very neatly shake the microcircuit with a needle so that it moves a little. It is important not to wobble too much, otherwise it will slip off the contacts, and so on with all the microcircuits not glued (without compound). We also warm up the filters, in order to remove the flux, you can use an ultrasonic bath, but we will do it differently.

We pour alcohol under all the microcircuits without a compound, hold it for a little so that the alcohol has time to collect all the dirt. Now we take the hair dryer from the soldering station and blow it under the microcircuits. Blowing alcohol out from under the microcircuits in this way, we do not need it there. The temperature of the hair dryer should be for warming up, not for soldering, it is in the range from 260 to 290 degrees, depending on which station.

Done, let's move on. Now let cool and collect. If the breakage is fixed after assembly, then "Hurray, everything is ready." If, nevertheless, the white screen and non-short buttons do not work, you need to replace the filters or put jumpers, but that's another story. The most important parts that can fail after water or after a fall (impact) are filters (so-called glasses), they look like this.

You need to do the same with them as with the rest of the microcircuits, only solder these places more carefully. Warm up, stir, about the flux (do not forget to apply) with it, the components will not get off the contacts. Now everything seems to be. What we have done only applies to breakage due to moisture getting inside the phone. Other breakdowns, such as "does not charge" or "the network does not catch" - this cannot be fixed, components will need to be replaced. More about this in future publications. Best regards, OPA.

So before us is the nokia 6120 classic phone (fig. 1). This phone model is of course outdated, but it's still a pretty good phone, according to the classification it is a mini smartphone with the Symbian operating system installed.

After three years of using the phone, one fine day, when talking with the subscriber, the sound disappeared, that is, I could not hear the subscriber at all. This sometimes happened before that time and was eliminated by rebooting the phone. But after the reboot operation, the situation did not change. And when the speakerphone was turned on, everything worked fine, but through a different speaker.

As with any phone, the nokia 6120 has two sound sources:
-conversational (voice) speaker - EARPIECE (Fig. 2 a);
-polyphonic speaker - IHF SPEAKER (Fig. 2 b).

Figure 2.a) earpiece speaker; b) polyphonic speaker.

It immediately became clear that the matter was most likely in the conversational dynamics: either it failed, or there was no contact, or it was in electronics (which of course is worse).
So, I started disassembling the phone. To do this, I only needed two tools from the cell phone repair tool kit: an opener and an A5 screwdriver (Fig. 3).

Figure 3: Phone disassembly tool

1. Remove the back cover, remove the battery from the compartment and use the opener to disconnect the back cover of the phone case (Fig. 4)

2. Also, using the opener, detach the front cover of the phone case (Fig. 5)

3. Disconnect the keyboard (fig. 6)

4. Unscrew the six screws securing the front frame (Fig. 7)

5. Disconnect the keyboard backing connector (Fig. 8)

6. Turn the frame over and observe the earpiece (fig. 9)

First of all, I, of course, with the help of a multimeter rang out the speaker for an open circuit, and it turned out that it was not working properly!

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The phone is about 3 years old, the model of the Chinese smartphone is called Hero 9300+, which served me with faith and truth, but for the last half a year the speaker practically did not work (wheezing, noisy), at first it cleaned it, and everything was fine, but then all the same covered himself. The speaker is a bit out of the ordinary, I didn't want to go looking, so I decided to try to install the speaker from another phone, namely from the broken Nokia X2-00.

I took out the speakers, there are 2 of them in Nokia, so there was plenty to choose from, to the left of the Chinese, to the right of Nokia.

To begin with, I wanted to check if the speaker on my phone will play at all, I soldered two wires to the speaker and two to the contact on the phone.

The speaker played, but it wheezed, apparently, it was also broken, so I tried to connect a second speaker, which was already playing cleanly, and it completely suited me.

But since the speakers were different, in terms of placing contacts, they had to be redone, antennae were taken from the native speaker.

Then they were soldered to the Nokievsky speaker, in this way.

Now all that remained was to put it in the place of the native speaker.

But the Nokia speaker was a little wider and didn't fit in the tray, so one partition had to be removed.

And he firmly fell into place.

Then he slightly bent the antennae forward, just like on the native speaker, so that the beam would contact, and assembled the body.

As a result of all these actions, I finally hear that someone is calling me, and I can listen to music as in the old days. : e113:

Thank you for your attention, I hope this alteration will help someone else, and he will hear the sounds of his own phone!

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The fact that a speaker for a mobile phone requires urgent replacement is evidenced by extraneous noise when using the phone or the complete absence of sound. From the practice of specialists: repairing a damaged speaker is a painstaking business, and not rewarding, since a repaired part is unlikely to last long. To make your phone work like new and serve you faithfully and effectively for a long time and productively, it is enough to replace the speaker.

Installing a new speaker for mobile phone, you can not only restore the sound functions of the gadget, but also significantly improve the sound. You can make a replacement both at home and in a service center, where the work will be done much faster and better.

If you nevertheless decide to install by yourself speaker for mobile phone, then we suggest using a small algorithm of actions for the most convenient work. Replacing the speaker is not as difficult an operation as it seems at first glance. The main thing is to have the necessary tool at hand, some knowledge, a desire to work and perseverance.

And the most important thing is self-confidence. The most necessary tool, in this case, is a soldering iron with a thin tip. Even when removing a faulty part, in no case should it be torn off or pulled out, it is necessary to carefully solder the contacts with a soldering iron and pull out the old speaker. In any case, the repair must begin with the fact that the phone should be disassembled or unscrewed, that is, remove the back cover.

In every phone speaker for mobile can be located in different places, but it is not difficult to find it. Having freed the phone from the old one, they did it as indicated above, and having two free contacts at their disposal, you can install a new spare part. You should work very carefully with a soldering iron, since due to the small size of the speaker, the contacts are located close enough to each other, and if you carelessly, you can connect them, thereby provoking their closure and combustion.

If you decide to install a speaker from another phone model to increase the sound capabilities of the gadget, keep in mind that due to the non-standard dimensions, it may go beyond the gadget. A new spare part on the board should be installed strictly in the place where the old one was installed. When installing a speaker removed from another mobile device, keep in mind that the sound quality may vary from device to device.

If you are going to install speaker for mobile on the slider, you must first perform the operation to disconnect the cable by pulling it out of the case or disconnecting it from the screen under the front cover. The second option allows you not to completely disassemble the phone, which allows you to complete the work on installing a new component much faster.

If you still doubt your abilities, you shouldn't risk it and disassemble the device yourself. Use the services of the service center.

Today, the number of good sound lovers who just throw out a wheezing speaker is not decreasing! At the same time, the cost of an analogue can be a tangible amount. I think the following will help anyone who has hands that grow out of the right place to fix the speaker.

Available - a miracle of design thought, once the former column S-30 (10AC-222), now serving as one of the autosubs. A week later, after the mutation, the patient began to show signs of the disease - he emitted extraneous sounds when working out the bass parts, and wheezed a little. It was decided to conduct an autopsy.

After autopsy, a diseased organ was removed from the patient's body - woofer 25GDN-1-4, 86 of release. The organ clearly needed operation - when gently pressing the diffuser, an extraneous sound was heard (very similar to a quiet click), and when ringing in various tones (generated by the nchtoner program), a clearly audible rattling-crackling sound was heard with a large diffuser stroke and when ultra-low (5-15Hz) ) frequencies. It was decided to trepan this organ

First, the patient's flexible lead wires were sealed off (from the side of the contact pads)

Then a solvent (646 or any other capable of dissolving glue, such as "Moment") was moistened with a syringe with a needle, the place where the dust cap and the diffuser were glued (along the perimeter).

... the place where the centering washer is glued to the diffuser (around the perimeter).

... and the place where the diffuser itself is glued to the basket of the diffuser holder (again around the perimeter)

In this state, the speaker was left for 15 minutes with periodic repetition of the previous three points (as the solvent was absorbed / evaporated)

Attention! When working with a solvent, safety measures should be observed - avoid contact with skin (use rubber gloves!) And mucous membranes! Do not eat or smoke! Work in a well ventilated area!

When wetting - use a small amount of solvent, avoiding getting it on the gluing area of ​​the coil and centering washer!

Depending on the type of solvent and air temperature, after 10-15 minutes of the above operations, using a sharp object, you can gently pry off the dust cap and remove it. The cap should either come off very easily or offer very little resistance. If you need to make significant effort, repeat the operations with wetting its edges with a solvent and waiting!

After peeling off the cap, carefully pour out the remaining solvent from the recess near the coil mandrel (by turning the patient over).

By this time, the centering washer has time to peel off. Carefully, without using any efforts, we separate it from the basket of the diffuser holder. if necessary, re-wet the gluing site with a solvent.

Wet the place where the diffuser is glued to the diffuser holder. We wait. Wet again and wait again. After about 10 minutes, you can try to peel off the diffuser.Ideally, it should detach from the diffuser holder (together with the coil and centering washer) without effort. But sometimes he needs a little help (the main thing is accuracy! Do not damage the rubber suspension.)