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Motorola Moto G45 5G Microphone Repair

Microphone Repair guide for the Motorola Moto G45 5G

Moderate
~32 min
19 steps

Before you begin

Tools

  • Heat gun or iOpener
  • Precision Phillips #00 screwdriver
  • Plastic opening picks
  • Spudger
  • Tweezers
  • Suction handle
  • SIM eject tool

Parts / materials

  • Moto G45 5G sub-board with microphone
  • Pre-cut back cover adhesive tape
  • Isopropyl alcohol (99%)

Safety

  • Wear an anti-static wrist strap to prevent electrostatic damage to internal components.
  • Do not bend or puncture the battery during disassembly.
  • Apply low heat evenly to avoid damaging plastic components or overheating the internal battery.

Overview

# Motorola Moto G45 5G Microphone Repair Repair Guide Action-specific microphone repair walkthrough for the Motorola Moto G45 5G. About 32 minutes across 19 steps. This DIY guide walks through microphone repair on the Motorola Moto G45 5G (Moto G series phone). Before you open the device, confirm the exact model number on the Motorola settings screen or rear housing so your replacement part matches the Moto G45 5G specifically—not a similar Moto G sibling. Most DIY techs finish this Motorola Moto G45 5G microphone repair in about 32 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this Motorola Moto G45 5G job: Heat gun or iOpener, Precision Phillips #00 screwdriver, Plastic opening picks, Spudger, Tweezers, Suction handle, SIM eject tool. Parts and supplies: Moto G45 5G sub-board with microphone, Pre-cut back cover adhesive tape, Isopropyl alcohol (99%). Power the Moto G45 5G off completely, remove SIMs/SD cards if present, and work on a clean, well-lit surface with a magnetic mat for screws. If a step feels wrong for your Motorola Moto G45 5G, stop and compare the connector layout to the photos in this guide. When you prefer a same-day pro repair in Seattle instead, LML Repair can handle microphone repair for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Power Off the Phone

    1 min

    Press and hold the Power button, then tap Power Off on the screen. Ensure the device is completely powered down before starting.

  2. 2

    Remove SIM Card Tray

    1 min

    Insert a SIM eject tool into the hole next to the SIM tray on the side of the phone. Push firmly to eject the tray and pull it out.

  3. 3

    Heat the Back Panel

    3 min

    Apply a heat gun or iOpener around the perimeter of the rear panel for 2 to 3 minutes. This softens the adhesive securing the back cover to the frame.

  4. 4

    Apply Suction Cup

    1 min

    Place a suction cup onto the lower portion of the back panel. Pull gently upward to create a small gap between the panel and the frame.

  5. 5

    Insert Opening Pick

    2 min

    Insert a thin plastic opening pick into the gap created by the suction cup. Take care not to insert it deeper than 3 millimeters.

  6. 6

    Slice the Back Cover Adhesive

    3 min

    Slide the pick carefully around all four edges of the back panel to cut through the adhesive. Reapply heat if the adhesive becomes tough to slice.

  7. 7

    Remove the Back Cover

    1 min

    Lift the rear cover away from the device frame once all adhesive is free. Set the back panel aside in a clean area.

  8. 8

    Unscrew Lower Speaker Cover

    2 min

    Use a Phillips #00 screwdriver to remove the screws holding down the lower speaker assembly shield. Keep track of all removed screws.

  9. 9

    Pry Up Speaker Module

    2 min

    Insert the flat edge of a spudger beneath the speaker module notch. Gently lift and remove the speaker housing from the bottom of the phone.

  10. 10

    Disconnect Interconnect Flex Cable

    1 min

    Use a spudger to pry straight up on the press-fit connector linking the main interconnect flex cable to the sub-board.

  11. 11

    Disconnect Coaxial Antenna Cable

    1 min

    Gently pry up the coaxial antenna cable connector from the sub-board using fine tweezers or a spudger.

  12. 12

    Remove Damaged Sub-Board

    2 min

    Pry gently beneath the edge of the sub-board with a spudger to release it from the chassis. Lift the sub-board, which houses the primary microphone, out of the phone.

  13. 13

    Transfer Rubber Microphone Seal

    1 min

    Check the old sub-board for a small rubber microphone gasket. If present, use tweezers to move it onto the microphone port of the new sub-board.

  14. 14

    Insert Replacement Sub-Board

    2 min

    Align the new sub-board with the bottom compartment of the frame and press it flush into place.

  15. 15

    Connect Antenna Cable

    1 min

    Snap the coaxial antenna cable connector directly onto its socket on the new sub-board until it clicks.

  16. 16

    Connect Interconnect Flex Cable

    1 min

    Align the interconnect flex cable header over its socket on the sub-board and press down firmly until it snaps into place.

  17. 17

    Reinstall Speaker Module

    2 min

    Place the speaker assembly back over the sub-board and align it with the screw posts.

  18. 18

    Secure Speaker Screws

    2 min

    Reinstall the Phillips screws to secure the speaker module to the lower chassis.

  19. 19

    Reattach Back Cover

    3 min

    Apply new adhesive strips along the perimeter frame, align the back panel, and press firmly along the edges to seal the phone.

After your Motorola Moto G45 5G microphone repair

Power the Moto G45 5G back on and test the microphone repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Motorola Moto G45 5G job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more Motorola Moto G45 5G repair context in the encyclopedia, or open related DIY guides.

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