How to Disassemble the Sony WH-XB900N Wireless Headphones to Fix No Sound or No Charge Issues (DIY Teardown and Repair Guide)

Do your Sony WH-XB900N wireless Bluetooth headphones have a dead or failing battery? Does the charging port only work when the cable is held at a specific angle? Are the earpads or headband cracked, torn, peeling, or degrading? Does the device produce no sound, constant static, or a white hiss noise in one earcup? Does it have a floppy or broken swivel hinge? If you're experiencing any of these issues, this DIY teardown tutorial will show you how to disassemble your Sony WH-XB900N headphones and complete the necessary repairs at home with genuine spare parts.

Prefer to get your earbuds professionally fixed? Send us your Sony WH-XB900N headphones using our mail-in repair service, and our repair ninjas will restore your device to peak working condition. You don’t need to pay upfront. We only charge after repairing your device.

Fill out our repair form to receive your free prepaid shipping label, then send your device. We’ll take care of the rest.

Repair Difficulty

Moderate / Requires 45-60 minutes to complete.

This repair involves carefully disassembling the Sony WH-XB900N headphones to reveal the problematic components and replacing them with genuine spare parts. While prior soldering experience may be useful, it’s not mandatory. With a bit of patience and attention to detail, you can replace the failing components at home.

Replacement Parts You’ll Need

Restore the form and functionality of your Sony WH-XB900N wireless Bluetooth headphones with genuine spares. Select the OEM replacement parts from the drop-down menu below to bring your device back to peak working condition.

• Sony WH-1000XM3 WH-1000XM4 XB900N CH710N Battery Replacement Repair Kit - Parts

• Sony WH-1000 XM3 XM4 XM5 XM6 Headphones Repair Screwdriver + Pry Tool Repair – Kit

Looking for another spare part? Browse the Joe’s GE Parts Catalog for the Sony WH-XB900N to find genuine replacement parts for your headphones.

Tools You’ll Need

Before starting the Sony WH-XB900N teardown, gather the following tools. Using the correct tools will help you disassemble the device and replace the failing components successfully. We used the following tools and recommend them for a safe, professional-quality DIY fix at home.

• Joe’s 50-in-1 Precision Screwdriver Set
• Strong Metal Pry Tool
• Precision Tweezers
• 1.5mm Phillips Screwdriver
• 1.5mm Flathead Screwdriver
• Nylon Spudger
• Soldering Iron
• Soldering Flux
• Heat-proof Anti-skid Rubber Work Mat

Don’t want to DIY? Let our certified techs handle the repair for you. Book your repair now.

Step-by-Step Sony WH-XB900N Teardown and Repair Guide

In this detailed DIY tutorial, we show you how to disassemble and repair the Sony WH-XB900N wireless Bluetooth headphones yourself. Follow each step carefully and use the accompanying images as a visual guide to complete the repair with confidence.

Step 1: Extract the Earpad Cushions

Grab the earpad cushion with your fingers, then pull it out from the groove to separate it from the earcup. Repeat the process on the other side.

Step 2: Disassemble the Right Earcup

Before tearing down any electronic device, we recommend disconnecting the battery to avoid a short circuit. The battery on the XB900 is on the right side, so we’ll start the teardown there.

2.1. Unfasten five 1.5mm Phillips screws from the speaker housing and set them aside.

2.2. Gently flip the speaker housing over, then disconnect the battery from the main board with a flathead screwdriver.

2.3. Apply flux to all the solder points, then use a soldering iron to disconnect the speaker driver and the main wire from the PCB.

Repair Ninja Tip: Before desoldering, spread the wires and take a photo of the connectors to use as a reference during reassembly. This will ensure the wires are reconnected in the correct order.

2.4. Disconnect the ribbon cable for the gesture touch control panel from the PCB.

2.5. Unfasten two 1.5mm Phillips screws from the main board to extract it from the earcup housing.

2.6. Insert a strong metal pry tool into the seam where the earcup meets the swivel arm, then gently work the tool to pop the swivel out of the groove, and set the headband aside.

2.7. Pull the mic-side (MS) cable away from the earcup with your fingers and set it aside.

2.8. Unfasten 3 Phillips screws to extract the battery from the earcup housing.

Step 3: Disassemble the Left Earcup

3.1. Unfasten 5 screws from the left speaker housing.

3.2. Flip the speaker housing over to reveal the wires, then apply solder flux to all the connections and desolder the wires. Remember to take a photograph of the connections to use as a reference while resoldering them.

3.3. Disconnect the ribbon cable for the charger port from the PCB.

3.4. Unfasten 2 screws holding the charger port to the earcup housing, then set it aside.

3.5. Insert a strong metal pry tool into the seam where the earcup meets the swivel arm, then pop it out from the hinge and set the headband aside.

3.6. Unfasten two 1.5mm Phillips screws from the Bluetooth board and set it aside.

Step 4: Disassemble the Headband Assembly

4.1. Insert a flathead screwdriver under the top plastic cover of the hinge arm and work the tool till it separates.

4.2. Pull the main wire out from the hinge arm.

4.3. Unfasten 2 silver screws from the hinge swivel to remove the plastic panel.

4.4. Remove the small metal horseshoe lock from the swivel, then pull the swivel out from the hinge.

4.5. Unfasten 2 screws from the headband hinge with a 1.5mm Phillips screwdriver, then slide the outer and inner pieces of the slider cover to disassemble the unit.

4.6. Unfasten 2 screws from the hinge assembly to separate it from the slider cover.

4.7. Slide the inner slider panel out from the headband assembly.

Congratulations! Your Sony WH-XB900N Wireless Bluetooth Headphones Teardown Is Complete

You have completely disassembled your Sony WH-XB900N headphones down to their individual components. Replace any damaged or malfunctioning parts with genuine OEM spares from our store, then reverse your steps to reassemble the headphones and restore them to full working condition.

If you found this guide helpful and would like to try your hand at DIY gadget repair, visit our store for essential tools and spare parts. You can also check out our at-home DIY headphone repair guides for other popular brands, including Apple, Beats, Bose, and Sony.

Have questions or suggestions about this repair? Text a repair ninja or email us, and we’ll reply shortly.