Our own technicians
Our own technicians do the repair. Nothing is outsourced.

Can't hear the other person, they can't hear you, or the ringtone is gone? If your phone has no sound, Help Cell tests the speaker and microphone of your Android at Floripa Shopping and replaces what is faulty.
When a phone has no sound, the fault is usually in one of three parts: the speaker that plays sound, the earpiece you use on calls, or the microphone that picks up your voice. At Help Cell, the technician tests each one, replaces the faulty one and, if the problem goes deeper, tells you the right repair. You ask for the price on WhatsApp, and the phone leaves with a 90-day warranty.
It is the repair of the parts that make and pick up audio on Android: the speaker, the earpiece speaker and the microphone. When one of them stops working, the phone stays on, but you stop hearing or being heard. Your device, data and apps stay the same.
Before replacing any part, the technician checks whether the fault is in the part or in a setting, because many people find the problem was just a setting. Only then is the phone opened.
The main speaker plays music, video, ringtones and speakerphone, and is usually at the bottom of the phone. The earpiece speaker is at the top and is the one you hold to your ear on a call. The microphone picks up your voice and is usually near the charging port. Each one has its own part, and one can fail without the other.
If nothing plays, neither music nor ringtones, the likely cause is the main speaker or something deeper on the board. If music plays but the call is silent, the likely cause is the earpiece speaker or the microphone. This difference helps the technician go straight to the right part.
Dust and dirt built up in the grilles can muffle the sound, and a badly fitted case can block the microphone. Silent mode, Bluetooth connected to another device and media volume set to the minimum also count. That is why the first WhatsApp chat includes a few simple questions.
If you recognize one of these six signs, it is worth bringing the phone in for a check.
Four steps, from the first contact until the phone works again.
Tell us the brand, the model and whether the problem is hearing, talking or ringing.
Our team asks for a few simple tests to rule out a setting or dirt.
The speaker, earpiece and microphone are tested, and the faulty part is replaced.
At pick-up, you make a call, record a voice memo and play a song before you leave.
What is part of the repair price and what is not.
The price depends on which part failed, the model and the cause. That is why Help Cell does not publish one fixed price: send the brand, model and symptom on WhatsApp and the reply comes with the price for your case.
| Factor | How it affects the price | Example |
|---|---|---|
| Faulty part | Speaker, earpiece and microphone are different parts, each with its own price. | Only the microphone stopped, and the rest works. |
| Phone model | Each model uses its own parts, with different ease of access. | A mid-range and a top model from the same brand. |
| Cause of the fault | Simple wear is more direct than liquid or fall damage. | Sound that disappeared after a dip in the sea. |
| More than one part | Replacing two parts in the same service adds the cost of the parts, but shares the opening work. | Earpiece and microphone failing together. |
| Board problem | If the part is good and the fault is on the board, the repair changes type. | Phone with no sound after a hard fall. |
Many people replace a part they don't need, or use the phone in a way that makes the fault worse. These are the points that make the most difference.
Anyone who tries to remove dirt with a sharp object can puncture the protective mesh over the part and push the dirt inside. If you want to clean it, use a soft brush, gently, with the phone turned off.
If the speaker is replaced but the fault was in the board's electrical path, the sound still doesn't come back and the money is gone. That is why the check comes before the part.
Strong heat can damage the part, and rice does not remove moisture from inside. Turn the phone off and ask for chemical cleaning for water damage as soon as possible.
On many phones, ringtone, media and call volumes are separate. Turn all three up and check that silent mode is off.
Sound may be going to a speaker, earphones or the car. Turn Bluetooth off and test again.
Record your voice with a voice recorder app and play it back. If the recording is silent or low, the microphone is the suspect; if it records well but you hear nothing, the speaker is the suspect.
A restart fixes temporary software glitches. If the sound comes back and disappears again, tell the technician, because that is a sign of a loose connection.
An overview to see where the symptom points. The final diagnosis only comes after the phone is tested at the bench.
| Check | No sound at all | Can't hear on calls | They can't hear me |
|---|---|---|---|
| What happens | Music, video and ringtones stay silent | Music plays, but the call is silent in your ear | You hear well, but your voice doesn't reach the other side |
| Most likely suspect | Main speaker or board | Earpiece speaker | Microphone |
| Simple test | Play a song without headphones | Call on speakerphone | Record a voice memo and listen |
| Could just be a setting | Yes, volume or silent mode | Yes, dirt in the grille | Yes, a case blocking it or dirt |
| When to bring it in | If no setting fixes it | If only speakerphone works | If the recording is silent |
In Florianópolis since 2007, at Floripa Shopping since 2012.
Our own technicians do the repair. Nothing is outsourced.
The person testing the audio has seen hundreds of similar cases.
Covers the repair and the replaced part against defects.
Samsung, Motorola, Xiaomi, Realme, LG, Asus and Pixel.
If the part is good and the fault is on the board, the team fixes it.
If the phone also fails to charge, the cleaning is a courtesy.
Our store is inside Floripa Shopping. If you prefer, we pick up your phone at your home.
Pick-up and delivery in Greater Florianópolis, for any service, with a fee. Not sure if the problem is a part? Message us on WhatsApp and describe what happens. It is the fastest way.
Message us on WhatsAppReal reviews from people who got their phone fixed at Help Cell, straight from Google.
Matheus looked after me very well! He was super attentive and managed to help me with my phone, which had dirt in the charging port. He fixed it quickly and explained everything clearly. Excellent service!
Efficient service on WhatsApp from Mykael and in the store from Josué. Excellent service! I took my phone in to replace the charging connector, but the technician checked it and, after a cleaning, found that the replacement was not necessary. The store did not charge for the cleaning either. Transparent, honest service and quality work. I recommend Help Cell!
Bruno CamargoGoogle review, Aug 2026I love this store, and Matheus's service definitely makes all the difference. He deserves the best rating possible! I recommend the store with my eyes closed and I will happily buy here again. Score: 10000.
The price depends on the part that failed and the phone model. Send the brand, model and symptom on WhatsApp +55 48 99110-7381 and Help Cell will reply with the price.
The time depends on the part and the model. Help Cell tells you the time for your case when it gives you the price. If the check shows another fault too, the store tells you before going ahead.
When the speaker or microphone is replaced, photos, contacts and apps stay on the phone. Even so, back up first if the phone still turns on. Help Cell also does data backup.
Not always. Volume turned down, silent mode, Bluetooth connected, dirt in the grille and software glitches can also leave the phone silent. See the tips in the guide Phone with no sound or no call audio: what it could be.
Ask about your model on WhatsApp. Help Cell explains which part it uses and what changes in each option, so you can decide with the price in hand.
Yes. The 90-day warranty covers the repair and the part against defects. It does not cover a fall, liquid or misuse after the repair.
The phone needs to be checked first. If liquid got in, the priority is chemical cleaning, because replacing the speaker first can hide corrosion. Turn the phone off and don't charge it until the check.
Yes, and many people do this for a few days. But the fault does not go away on its own, and if the cause is moisture or a swollen battery, waiting makes things worse. See Swollen battery: what to do before it bursts.
Yes. Pick-up and delivery covers Greater Florianópolis, for any service, with a fee.
If the problem is more than audio, check the most requested repairs along with it.
Stiff volume or power button, and weak vibration.
See the repairNo signal, no SIM or no network. See the page for phones with no signal.
See the repairCracked or loose back cover, replaced in store with your phone.
See the repairScreen, battery, charging and audio for tablets, by the same team.
See the repairPhone with no sound even with a good part, due to a board fault.
See the repairPhone that got wet and lost sound, checked in store.
See the repairGuides about phones with no sound
Send the brand, the model and what the phone can't do, and get the price. Prefer to call? Ring +55 48 3238-7381.
Describe my phone's audio problem