How to Replace the Power Button/Switch on Bose QC35 Headphones

Is the power button slider on your Bose QuietComfort (QC) 35 (1st and 2nd Generation) wireless headphones loose, wobbly, or stuck inside the outer case? Does the slider switch require multiple attempts to turn the headphones on or off, or fail to function entirely? If you’re experiencing any of these issues, the power slider spring switch may no longer be making proper contact with the microswitch on the circuit board. Replacing the spring switch can restore proper operation and give the headphones a responsive feel.

In this DIY repair guide, we show you how to replace a loose or wobbly power slider button on the Bose QuietComfort (QC) 35 (I and II) wireless headphones at home with original replacement parts. Find all the tools and genuine spare parts for this repair below.

Prefer to get your headphones repaired by professionals? Send us your Bose QuietComfort (QC) 35 (I and II) 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.

Video Tutorials

Here are detailed videos of how to replace the power button slider spring switch and plastic button pusher on the Bose QuietComfort (QC) 35 1st and 2nd Generations yourself.

• Bose QuietComfort (QC) 35 (I and II) Red, Green Plastic Button Pusher Switch DIY Replacement

• Bose QuietComfort (QC) 35 (I and II) Power Button Slider Spring Switch DIY Replacement
  

Repair Difficulty

Moderate / Requires 30-45 minutes to complete.

This repair involves carefully disassembling the Bose QuietComfort 35 (1st and 2nd Generation) headphones to reveal the faulty power slider button and replacing it with genuine spare parts. While prior soldering experience may help, it’s not essential. With the right tools, a bit of patience, and attention to detail, you can replace the power button spring switch in the Bose QC 35 (1st and 2nd Generation) headphones at home.

Replacement Parts You’ll Need

Restore the charging functionality of your Bose QC 35 (I and II) 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.

• Bose QuietComfort 45 35 I II Power Button Sliding Spring Switch Replacement - Parts

• JoesGEcom For Bose QuietComfort QC 35 QC35 I II Replacement Red Green Power Plastic Button Switch - Parts

• Bose QC25 QC35 QC45 QC SE QC Headphones Repair Tool Kit – Complete Set

Looking for another spare part? Browse Joe’s GE Parts Catalog for the Bose QuietComfort (QC) 35 headphones to find genuine replacement parts.

Tools You’ll Need

Before starting the Bose QuietComfort (QC) 35 power button slider 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.

• Joe’s 50-in-1 Precision Screwdriver Kit
• 2.0mm Phillips Screwdriver
• Nylon Spudger
• Precision Tweezers
• Strong Metal Pry Tool
• Soldering Iron
• Soldering Flux
• Heat-Proof Anti-Static Rubber Work Mat

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

Step-by-Step DIY Guide to Replacing a Wobbly or Loose Power Slider Spring Switch and Plastic Button Pusher on the Bose QuietComfort (QC) 35 1st and 2nd Generation Headphones at Home

In this detailed DIY repair guide, we show you how to replace a loose or wobbly power slider spring switch and red/green plastic button pusher on the Bose QuietComfort (QC) 35 (I and II) 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 Right Earpad Cushion

1.1. The right earpad is held on by small clips that run around the edge of the speaker housing. Carefully pull off these clips with your fingers to peel the earpad away from the earcup housing.

1.2. The mesh that sits inside the earpad is held on by two pieces of double-sided tape. Peel the tape off the housing slowly to prevent tearing the mesh. 

Step 2: Remove the Outer Earcup Housing Cover

2.1. Unfasten 3 Phillips screws securing the external earcup housing and store them in one of the slots in the rubber work mat.

2.2. Flip the earcup and pull the outer cover with your hand.

Ninja Repair Tip: Sometimes the outer cover will be held on by small clips inside the housing. Insert a nylon spudger into the seam where the cover meets the earcup and pry up till the earcup cover separates.

Step 3: Extract the Main Board from the Earcup Housing

3.1. Remove the red/green plastic power button pusher from the spring switch and set it aside. If this part is damaged, discard it and use a replacement button pusher during reassembly.

3.2. Pull the black rubber pieces and store them for later use.

3.3. Unplug the ribbon cable from the main board. Use precision tweezers to remove the old adhesive covering the connector.

3.4. Desolder the 2 wires from the main board.

3.5. Unfasten two 2.0mm Phillips screws securing the PCB to the earcup housing.

3.6. Pop up the main board and pull it out of the earcup housing with your fingers. You can also use a nylon spudger as leverage to extract the PCB.

Step 4: Separate the Worn-out Power Button Spring Slider from the PCB

4.1. Apply soldering flux to the 4 connector points of the power button slider, then desolder them from the main board with a hot soldering iron.

Step 5: Install a New Power Button Spring Slider on the PCB

5.1. Grab a new power button spring slider switch, remove the plastic cover, align the 4 points with the PCB so that the letters ‘C’ and ‘K’ are visible, reading left to right, then solder them to the circuit board.

Step 6: Reassemble the Bose QuietComfort (QC) 35 (1st and 2nd Generation) Headphones

6.1. Insert the PCB into the earcup housing and align the grooves so that it slots into place.

6.2. Fasten two 2.0mm Phillips screws to secure the PCB and the earcup housing.

6.3. Plug in the ribbon cable to the main board.

6.4. Solder the two wire pairs to the main board. For the black and white wires, solder the white wire to the negative terminal and the black wire to the positive terminal. For the red and copper wires, solder the red wire to the negative terminal and the copper wire to the positive terminal. The positive and negative terminals are clearly labelled + and – on the PCB.

6.5. Install the 2 rubber pieces in the earcup.

6.6. Reinstall the old button pusher or install a new red/green plastic button pusher on the power button spring switch.

6.7. Place the earcup housing cover over the new switch and ensure that it is securely snapped into place and works properly.

6.8. Fasten 3 screws to secure the earcup housing cover to the earcup.

6.9. Install the mesh cover with double-sided adhesive tape. 

6.10. Install the earpad by peeling back the leather and placing the edge into the rim of the housing. Once it is seated, apply even pressure around the entire edge of the earpad to snap it into place.

Congratulations! Your Bose QuietComfort (QC) 35 1st and 2nd Generation Wireless Bluetooth Headphones are Ready to Use

You have fixed the no-power issue on the Bose QC 35 I and II headphones by replacing the loose or wobbly power slider spring switch and plastic button pusher. Check button response, charging stability, audio quality, and Bluetooth pairing 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 headphones 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 shortly.