POCO X3 NFC Speaker Replacement Guide (Poco X3 Pro/ X3)

If your Xiaomi Poco X3 series phone has low sound, distorted ringtone audio, or no ringing at all, the ringer (loudspeaker) module may be faulty. In this guide, we’ll show you how to replace the ringer speaker safely at homeusing basic tools.

This DIY repair guide is compatible with Poco X3 NFC, Poco X3, and Poco X3 Pro, as these models share a similar internal layout. Follow each step carefully to restore loud, clear sound to your device.


Repair Overview

  • Device Models: Poco X3 NFC / Poco X3 / Poco X3 Pro
  • Repair Type: Ringer Speaker Replacement
  • Difficulty Level: ⚠️⚠️ Medium
  • Estimated Time: 25–40 minutes
  • Risk Level: Moderate

Reasons to Replace the Poco X3 Ringer Speaker

  • No ringtone or notification sound
  • Very low or muffled speaker output
  • Crackling or distorted audio
  • Sound works only with headphones
  • Water or dust damage affecting the loudspeaker

Before You Begin

Compatibility and Model Numbers

  • POCO X3 NFC 
  • POCO X3 
  • POCO X3 Pro

Model Numbers : MZB07Z0IN, MZB07Z1IN, MZB07Z2IN, MZB07Z3IN, MZB07Z4IN, MZB9965IN, M2007J20CI, M2007J20CG, M2007J20CT, M2102J20SG, M2102J20SI

Tools Required

  • Mobile phone heating pad or hairdryer/heat gun
  • Plastic pry tool / card pry
  • Suction cups
  • Phillips #00/#000 screwdrivers
  • Tweezers (for connectors)
  • B7000 glue or double-sided adhesive (for back cover)
  • Rubber bands or bonding clips to secure the back cover

How to Find Tools and Parts


Protect Your Poco X3 Series


Step-by-Step Poco X3 Ringer Speaker Replacement Guide

Step 1: Power Off and Open the Device

Turn off the phone completely. Remove the SIM tray using a SIM eject tool.


Step 2: Heat and Remove the Back Cover

Gently heat around the edges of the back cover to soften the adhesive.

  • Use a heating pad (mobile heating mode), heat gun, or hairdryer

Create a small gap with a suction cup and slide a plastic pry tool around the edges to cut the adhesive. Carefully lift off the back cover.


Step 3: Remove the Board Frame

Unscrew 11 Phillips screws securing the board frame. Lift and remove the frame carefully.


Step 4: Disconnect the Battery

Unplug the battery connector first to avoid short circuits during the repair.


Step 5: Remove the Faulty Ringer Speaker

Locate the ringer speaker module at the bottom of the phone.
Unscrew and lift out the ringer speaker cover/module gently from the body.


Step 6: Install the New Ringer Speaker

Place the new ringer speaker module into the housing, ensuring proper alignment and contact with the board.


Step 7: Reinstall the Board Frame

Reposition the board frame and secure it using 11 screws. Reconnect the battery connector.


Step 8: Seal the Back Cover

Before closing the device, check if the back cover has enough adhesive.

  • If needed, apply B7000 glue or a new double-sided adhesive

Press the back cover firmly and use binding clips or rubber bands to keep it tight for a few minutes.


Frequently Asked Questions (FAQ)

Q: Is the ringer speaker the same for Poco X3 NFC and X3 Pro?
A: Yes, the ringer speaker design is compatible across Poco X3 NFC, Poco X3, and Poco X3 Pro.

Q: Will this fix call audio issues?
A: No. Call audio uses the earpiece speaker. This repair only fixes loudspeaker/ringtone issues.

Q: Can software cause ringer speaker problems?
A: Rarely. Most ringer issues are hardware-related, especially after drops or water exposure.


Troubleshooting (After The Repair)

Q: No sound after replacement
A: Check if the speaker contacts are aligned and the board frame is tightened correctly.

Q: Sound is still low or distorted
A: Make sure the speaker grill is clean and not blocked by dust or adhesive.

Q: Phone does not power on
A: Recheck the battery connector and ensure no flex cables were disturbed.


Final Notes

Replacing the ringer speaker on Poco X3 series phones is a practical DIY repair that can bring your phone’s sound back to life. Work slowly, use proper tools, and always disconnect the battery first for safety.

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