iPhone 12 Speaker Replacement Guide

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Today, we will show you how to replace the Ringer Speaker Buzzer on the iPhone 12/12 Pro mobile phone. If your device has no sound during calls, alarms, or notifications, this guide will help you fix it safely at home.

Before starting, ensure you have the right tools to perform the repair. All tools, including screwdrivers, pry tools, and suction cups, are listed in the description below. Using the correct tools reduces the risk of damaging your device and makes the process faster and safer.

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Compatibility and Model Numbers

This repair guide based on iPhone 12 mobile phone. But this guide also compatible with iPhone12 Pro mobile phone.

Compatible Mode Numbers l A2403, A2172, A2402, A2404, A2407, A2341, A2406, A2408

Tools You Need

• Heating pad / heat gun / hairdryer
• Suction cup
• Plastic card pry tools / opening picks
• Phillips PH000 screwdriver
• Pentalobe P2 Screwdriver (for bottom screws)
• Tri-Point Y000 Screwdriver
• Adhesive (B7000 or double-sided frame adhesive)
• Bonding clips or rubber bands (optional but recommended)

How to Find Tools and Parts

• Heating pad – https://amzn.to/3H0tHzJ
• Portable Heat Gun – https://amzn.to/4mszih1
• Clamps https://amzn.to/3GYJT4w
• STREBITO 142 Piece Repair Tool Kit https://amzn.to/3UO1jUx
• Glue | Adhesive https://amzn.to/46exVxe
• Compatible Parts https://amzn.to/3Hx6sxo
• Silicone Work Repair Mat https://amzn.to/45Emz5l

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Step 1 — Power Off & Remove SIM Tray

First, turn off your iPhone 12 to prevent any electrical issues.
Next, remove the SIM tray from the side.
Then, using a Pentalobe screwdriver, undo the two bottom screws near the charging port.

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Step 2 — Heat & Lift the Display

The iPhone 12 screen is sealed with adhesive.
Apply gentle heat to soften the glue. You can use a heating pad, heat gun, or hairdryer—just be careful not to overheat.

Attach a double-sided suction cup at the bottom of the screen to lift it.
If you don’t have one, a regular suction cup works with a plastic card pry tool or triangle picker to separate the rubber gasket around the frame.

Lift the screen carefully, like opening a book from the left side.

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Step 3 — Remove Shields & Disconnect Cables

Inside, you’ll find two protective shields:

• Bottom shield: Remove 2 screws
• Top shield: Remove 4 screws

Next, disconnect the following connectors carefully:

• Battery plug
• Earpiece assembly connector
• Two screen connectors

Disconnecting the battery first ensures safety during repair.

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Step 4 — Remove the Old Ringer Buzzer

The ringer buzzer is secured with four screws.
Carefully remove these screws and lift out the faulty ringer buzzer speaker.

Pay attention to the placement of connectors and edges while removing it.

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Step 5 — Install the New Ringer Buzzer

Place the new ringer buzzer into the correct position in the frame.
Secure it using the four screws you previously removed.

Make sure the connector is properly aligned and seated.

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Step 6 — Install Water Seal Adhesive

Install pre-cut water seal tape around the frame. This helps maintain splash and dust resistance.
Note: This will not fully restore waterproofing, but it significantly improves protection.

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Step 7 — Reconnect Display & Components

Reinstall everything in reverse order:

• Reconnect earpiece assembly, LCD connectors, and battery plug
• Reattach top and bottom shields with screws

Carefully place the display back on the frame. Press top first, then sides, and finally the bottom to snap it in place.

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Step 8 — Secure the Phone

Finish the assembly by adding the two bottom Pentalobe screws.
Reinsert the SIM tray, ensuring it fits snugly.

Your iPhone 12 ringer speaker buzzer replacement is now complete!

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Step 9 — Test the Device

Turn on the phone and test:

• Incoming calls
• Alarms
• Notifications

Ensure the sound is working perfectly.

Frequently Asked Questions

1: Will replacing the ringer buzzer fix microphone issues?
A: No. The ringer buzzer only affects sound output. Microphone issues are usually related to the charging port flex or microphone components.

2: Do I need to replace water-seal adhesive?
A: Yes, it improves dust and splash resistance, though full waterproofing isn’t restored.

3: Can I use any replacement buzzer?
A: Use a high-quality or original replacement to ensure proper sound and fit.

More Repair Guides

• Check iPhone 12 Battery Replacement Guide
• View iPhone 12 mini Repair Guides