How to Replace Battery Sony WF-1000XM4 WF1000XM4 XM4 Wireless Earbuds | Install | Remove | Repair

How to Replace Battery in Sony WF-1000XM4 Wireless Earbuds

Step 1: Apply Heat

• Use a thin nozzle heat gun to apply heat evenly around the seam of the earbuds for about 1 minute. Be careful not to apply heat to the driver to avoid damaging the earbuds.

Step 2: Separate the Housings

• Use a thin separator tool to separate the two housings of the earbuds by breaking up the adhesive all the way around the seam. Be gentle to avoid damaging the ribbon connectors holding the housings together.

Step 3: Remove One Board

• Gently insert a tool between the two boards and pry up to separate them. Disconnect the ribbon connector and set aside the housing with the board connected to the battery.

Step 4: Disconnect the Battery

• Pry up the plastic tab connected to the ribbon connector gently. Wiggle and pull the connector away from the board to disconnect the battery.

Step 5: Remove the Battery

• Insert a plastic pry tool between the battery and the board. Apply pressure to separate the battery from the board. If there is adhesive, use tweezers to remove it.

Step 6: Install the New Battery

• Insert the new battery with the negative side up. Apply pressure to attach the board to the battery securely.

Step 7: Reconnect Ribbon and Boards

• Reattach the ribbon connector by gently pushing it back into place. Ensure the locking mechanism is secured. Connect the two boards back together by snapping them in place.

Step 8: Apply Adhesive

• Apply adhesive along the edge of the seam and clamp the housings together. Leave it clamped overnight for the adhesive to cure.

Step 9: Clean Up

• Use a separator scraper tool to remove excess adhesive. Wipe down and clean the earbuds to finish the battery replacement process.

Step 10: Final Checks

• Ensure everything is lined up and looks okay before using the earbuds. Test the functionality to see if the battery replacement was successful.

By following these steps carefully, you can replace the battery in your Sony WF-1000XM4 wireless earbuds effectively.