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This micro switch / push button switch is designed as a replacement for the switch underneath the LB or RB bumper button on compatible Microsoft Xbox controllers.

The small switch is mounted directly on the controller PCB and is mechanically activated when the corresponding bumper is pressed. With frequent use, these switches can become worn or damaged over time.

Typical symptoms include an LB or RB button that no longer responds, inputs that are only detected when pressing firmly, or unreliable bumper operation.

The same micro switch can be used for either the left LB button or the right RB button.

This version is suitable for compatible Xbox One and Xbox 360 controllers.

Replacing the switch requires opening the controller and desoldering the original micro switch from the PCB. The replacement switch is then soldered into the same position.

✅ Features

• Micro switch / push button switch for Xbox controllers
• Suitable for LB and RB bumper buttons
• Can be used for left or right side
• Compatible with Xbox One controllers
• Compatible with Xbox 360 controllers
• Replacement for worn or defective bumper switches
• Mechanical momentary push button
• Mounted directly on the controller PCB
• Ideal for non-responsive LB/RB buttons
• Suitable for controller repairs
• Compact design
• Soldering required

Typical Fault Symptoms

Replacing the micro switch may be useful for problems such as:

• LB button no longer responds
• RB button no longer responds
• LB or RB only works intermittently
• Button requires excessive pressure
• Inputs are not always detected
• Unreliable button inputs
• Switch no longer has a proper click
• Mechanically damaged micro switch
• Damaged or defective switch contacts

Before replacing the switch, check whether the electrical micro switch itself is defective or whether the plastic bumper mechanism above it is damaged.

LB / RB Bumper Function

The two upper bumper buttons on an Xbox controller are known as:

• LB – Left Bumper
• RB – Right Bumper

When pressed, the external plastic bumper activates the small micro switch mounted on the controller PCB.

This product is the electrical micro switch / push button and not the external plastic LB/RB bumper button.

Installation

The controller must be opened and the main PCB accessed to replace the switch.

The original micro switch must be desoldered from the controller PCB and the replacement switch soldered into its place.

Depending on your repair method, suitable tools may include:

• Soldering station
• Electronics solder
• Flux
• Desoldering braid or desoldering station
• Tweezers
• Suitable controller opening tools

Care should be taken during desoldering to avoid damaging PCB pads or traces.

After installation, test the LB/RB button before completely reassembling the controller.

Compatibility

✅ Compatible with:

• Microsoft Xbox One Controller
• Microsoft Xbox 360 Controller
• LB – Left Bumper
• RB – Right Bumper

⚠️ We recommend comparing the shape, dimensions and connections of the original micro switch with the replacement part before ordering, as different controller hardware revisions may exist.

⚙️ Technical Specifications

• Product Type: Micro Switch / Push Button Switch
• Application: Controller Bumper / Shoulder Button
• Button Position: LB or RB
• LB: Left Bumper
• RB: Right Bumper
• Compatibility: Xbox One / Xbox 360 Controller
• Switch Type: Momentary Mechanical Push Button
• Installation: Directly on Controller PCB
• Mounting: Soldered
• Soldering Required: Yes
• Application: Repair / Replacement
• Quantity: 1 Piece

⚠️ Please Note

This product is the electrical micro switch mounted on the controller PCB. The external plastic LB/RB bumper button is not included.

Before replacement, check whether the fault is actually caused by the micro switch. If the plastic bumper or its mechanical mechanism is broken, the corresponding bumper component may also need to be replaced.

Installation requires soldering directly to the controller PCB and should be carried out using suitable equipment and appropriate soldering experience.

LB RB Micro Switch Button for Xbox One / Xbox 360 Controller | Bumper