How to Fix a Faulty Power Board (No Power Issue) on the Beats Solo 4 Wireless Bluetooth Headphones (DIY Repair Guide)

Does your Beats Solo 4 (model number A3140) Wireless Bluetooth headphone refuse to power on, overheat during charging, or switch off unexpectedly despite having a good battery? The power board may be due for replacement.

In this DIY repair guide, we show you how to fix a faulty power board in the Beats Solo 4 wireless headphones using new OEM spares without needing technical skills or expertise. You will find all the tools required for this repair and original replacement parts below.

Want to get your headphones repaired by a professional? Send us your Beats Solo 4 Wireless headphones today, and our repair ninjas will restore them to peak working condition. Follow the link, select the issues you’re experiencing, click Continue, enter your email ID, and click Get My Estimate to view the repair cost instantly.

Repair Difficulty

Moderate / Requires 20-35 minutes to complete.

This repair involves handling delicate wires, the battery, circuit boards, and screws. You don’t need prior experience or technical skills to complete this repair yourself. With the right tools, patience, and attention to detail, you can replace the Beats Solo 4 power board yourself.

Replacement Parts You’ll Need

Restore your Beats Solo 4 wireless headphone’s battery life and audio playback time using original replacement parts. Select the OEM spares from the drop-down menu below and bring your device back to peak working condition.

• Beats Solo 4 Wireless A3140 Power Board PCB Repair 820-03429 - Parts

Get an OEM replacement power board for your Beats Solo 4 Wireless headphones today. Click the link to visit our store, then scroll down to the Customers Also Add section to purchase the original replacement part and the tools you’ll need for this repair at a discount.

Tools You’ll Need

Before starting the Beats Solo 4 wireless power board replacement, gather the following tools. Using the correct instruments will help you complete the repair successfully. We used the following tools and recommend them for a safe, professional-quality DIY fix at home.

• 2.0mm Phillips Screwdriver
• Strong Metal Pry Tool
• Precision Tweezers
• Heat Gun
• Soldering Iron
• 3M Double-sided Tape
• Heat-proof Anti-skid Rubber Work Mat

Not ready to invest in tools yet? Find your device in our repair catalog, select the issues it’s experiencing, and send it to us. Our repair ninjas will restore your device to peak working condition.

Step-by-Step DIY Guide to Replacing the Malfunctioning Power Board on the Beats Solo 4 Wireless Headphones at Home

In this detailed DIY repair guide, we show you how to fix the power board on the Beats Solo 4 wireless headphones yourself. Follow each step carefully and use the accompanying images as a visual guide to complete the repair with confidence.

Step 1: Remove the Right Earpad Cushion

The power board is located inside the right earcup. Identify the side with the charging port, as this is the earcup you will need to disassemble.

1.1. Insert a sturdy metal pry tool into the seam between the earpad cushion and the earcup. Gently work the tool up and down to separate the cushion from the earcup without damaging the retaining clips.

Step 2: Separate the Right Outer Panel from the Earcup Housing

2.1. Unfasten the 3 screws holding the earcup together with a 2.0mm Phillips screwdriver.

2.2. Insert the strong metal pry tool in between the outside panel and the earcup and work your way along the seam.

2.3. When the outer panel separates from the earcup, work the pry tool around the perimeter all the way up to the slider mechanism.

2.4. Flip the outside panel and unfasten the single screw securing the touch panel cable to the power board, then set the outside panel aside.

Step 3: Extract the Malfunctioning Power Board

3.1. Pry the battery out of the earcup with a strong metal pry tool and disconnect the battery connector.

3.2. Apply heat over the power board connector to soften the adhesive.

3.3. Remove the adhesive over the power board connector with precision tweezers.

3.4. Unclip the main wire from the power board.

3.5. Unsolder the 2 internal wires connected to the power board. Take a picture of the wires before removing them.

Pro Tip: If any connector is covered by adhesive, soften it with heat and carefully remove it using precision tweezers before disconnecting the cable.

3.6. Unfasten the single screw securing the power board to the earcup, then discard the old power board.

Step 4: Install a New Power Board

4.1. Align the 2 pins on the new power board with the grooves on the earcup and fasten the single screw.

4.2. Solder the 2 wires back onto the new power board using the reference photo from Step 3.5.

4.3. Connect the main wire to the power board with precision tweezers.

Step 5: Reassemble the Beats Solo 4 Wireless Headphones

5.1. Clip the battery wire back in and stick the battery to the housing with double-sided tape.

5.2. Reconnect the wires to the outside touch panel and secure them with a single screw.

5.3. Align the outside panel with the earcup at the top of the hinge assembly.

5.4. Press the two panels together till you hear them click into place.

5.5. Fasten the 3 screws on the earcup.

5.6. Align the earpad cushion with the earcup and press down till you hear the clips click into place.

Congratulations! Your Beats Solo 4 Wireless Bluetooth Headphones are Ready to Use!

You have successfully replaced the malfunctioning power board on the Beats Solo 4 wireless headphones. Check charging stability, audio quality, and playback time to confirm the device is working properly.

If you found this guide helpful and would like to try your hand at DIY gadget repair, check out our store for essential tools and spare parts. You can also check out our at-home 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 respond as soon as we can.