How to Solve The Other Party Can’t Hear the Sound Making A Call on iPhone?

 If you've ever been in the frustrating situation of not being able to hear what you're saying while on a call on your iPhone, you're not alone. This problem can be extremely frustrating and interrupt important conversations, whether they're important business calls or friendly chats with loved ones. But don't worry, there are plenty of potential solutions to get your iPhone audio communications back to normal. Don't worry, China Phonefix has the solution for you today.

Check basic settings
Check mute and volume: Make sure the mute switch on the side of your iPhone is not on and that the volume is turned up appropriately by pressing the volume buttons. Also, make sure Volume Limit is disabled in the Settings app.

Check for obstructions: Remove any screen protectors, films, or cases that may be blocking the microphone. Use a soft, Non-metallic brush to clean the microphone opening on your iPhone, and a microfiber cloth to remove loose debris.

Check software settings
Check microphone permissions: Go to Settings > Privacy & Security > Microphone and make sure the Phone app has access to the microphone.

Check call and sound settings: In the Settings app, check the Call settings to make sure the Call Volume setting is correct. You can also try resetting your network settings by going to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.

Disable Sound Enhancement: If Sound Enhancement or Ambient Sound Balance is enabled, try turning them off in Accessibility settings and retesting the call.

Check for software updates: Make sure your iPhone is running the latest version of iOS. Go to Settings > General > Software Update to check for and install any available updates.

Restart or reset your iPhone: First, try restarting it normally. If that doesn't work, perform a hard reset by pressing and holding the power and volume buttons until the Apple logo appears. If the problem persists, you can try backing up your data and then restoring or resetting your iPhone to factory settings in Settings > General > Transfer or Reset iPhone.

Test and troubleshoot hardware issues
Test your microphone: Record a memo using the Voice Memos app and play it back to see if your voice is clear. If you're using headphones, try recording using their microphone and test if the other party can hear you during the call.

Check the headphone jack and connector: If you're using headphones or other accessories, check that the Headphone Jack is clean t and securely connected. Try using another pair of headphones to see if the problem is resolved.

Check your iPhone for damage: Check your iPhone for any external damage that could affect the microphone. If none of the above work, there may be a hardware problem with the microphone or other components, and you should contact Apple Customer Service or an authorized service center for further assistance.

Consider environmental and network factors
Choose a suitable calling environment: Try to make calls in a quiet environment to avoid background noise that interferes with call quality.

Check signal strength: Make sure you are in an area with good signal strength. If the signal is weak, try switching to airplane mode and then switching back again to reset the signal.

Precision Repair
Replacing the Microphone
Tools Required: A set of Precision Screwdrivers (including both Pentalobe and Phillips heads), a spudger, a suction cup, and a replacement microphone. Replacement microphones are available from reliable iPhone parts suppliers.

Steps:
1. Turn off the iPhone completely.
2. Use the Suction Cup to gently lift the iPhone Screen from the bottom edge of the iPhone. Be careful not to damage the adhesive or the screen cable.
3. Once a small gap is created, insert the spudger and carefully pry the edges of the screen away to disconnect the screen cable from the logic board. This usually requires loosening several small clips.
4. Locate the microphone. On most iPhones, the primary microphone is located near the charging port. Use a suitable screwdriver to remove the screws that secure the microphone.
5. Remove the screws that secure the microphone.
6. Disconnect the microphone connector and replace it with a new one.
7. Reassemble the iPhone in reverse order, making sure all cables are properly reconnected and the screen is securely connected.

Inspect and Clean the Logic Board Connections
Tools Required: Magnifying glass, isopropyl alcohol, soft-bristle brush, and tweezers.

Steps:
1. Open your iPhone as described above.
2. Use a Magnifying Glass to carefully inspect the logic board for signs of corrosion, loose connections, or damage near the microphone connector.
3. If there is obvious dirt or corrosion, use a soft-bristle brush dipped in isopropyl alcohol to gently clean the affected area. Be careful not to apply too much liquid, as this may damage other components.
4. Use Tweezers to carefully inspect the area around the microphone circuit for any loose or damaged components. If you find any loose or damaged components, they may need to be re-soldered or replaced by a professional.

Testing and Replacing the Audio IC
Tools Required: Hot Air Gun, Soldering Station with a fine-tipped soldering iron, replacement audio integrated circuit (IC), and solder flux.

Steps (for experienced technicians):
1. First, use a heat gun to desolder the existing audio IC from the logic board. Apply solder flux to the solder joints to make the desoldering process easier.
2. After removing the audio IC, use a soldering iron and Desoldering Tape to clean the pads on the logic board.
3. Place the new audio IC in the correct position on the logic board and apply a small amount of solder flux.
4. Use a soldering iron to carefully solder the new audio IC to the logic board, making sure all pins are properly connected. Reassemble your iPhone and test the call audio.

Software-related advanced fixes
Reinstall iOS system
Steps:
1. Connect your iPhone to a computer with the latest version of iTunes or Finder (on macOS Catalina and above).
2. Put your iPhone into recovery mode. For most iPhones, you can do this by pressing and quickly releasing the Volume Up button, then pressing and quickly releasing the Volume Down button, then holding down the Side button until the recovery mode screen appears.
3. In iTunes or Finder, you will see an option to "Restore iPhone". Click this option and iTunes/Finder will download the latest iOS version for your iPhone and install it. Please note that this will erase all data on your iPhone, so it is important to have a recent backup.

Using DFU (Device Firmware Update) Mode
Steps:
1. Connect your iPhone to your computer using iTunes or Finder, DFU Box.
2. Turn off your iPhone.
3. Press and hold the Side button and the Volume Down button simultaneously for 10 seconds.
4. Release the Side button but continue to hold the Volume Down button for 5 seconds. Your iPhone will now be in DFU mode.
5. In iTunes or Finder, DFU Box, you will be prompted to Update or Restore your iPhone. Select the appropriate option. Similar to the Recovery Mode method, using DFU mode may erase your data, so back up your iPhone first.

Together, the solutions provided offer a comprehensive approach to resolving the frustrating issue of the other party not being able to hear you during an iPhone call. When it comes time to get the repairs you need for any of these solutions, Phonefix is ​​your first choice. They stock a large selection of High-quality iPhone Repair Parts, from replacement microphones to premium soldering tools, all from trusted manufacturers.