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Logitech MX Master 4

Check MX Master 4 pointer, buttons and scrolling independently of Logi Options+, then distinguish Bluetooth from Logi Bolt connection problems instead of treating every disconnect as a mouse sensor failure.

2 verified model facts4 relevant live tests1 exact compatibility answers0 model-specific fixesReviewed 2026-08-11

Model facts that change the troubleshooting path

01

Logitech documents 8,000 DPI tracking and haptic feedback for MX Master 4.

02

Logitech lists both Bluetooth and Logi Bolt wireless connection paths for the mouse; the exact receiver connector can vary by product/business package, so check the included receiver for your SKU.

Documented connection pathsBluetooth · Logi Bolt receiver · USB-C charging

Test matrix

What to test and what a pass actually tells you

Run the test closest to the symptom. A passing result narrows the diagnosis; it does not certify the entire device.

Mouse Button TestVerify left, right, middle, and extra mouse button events.

A pass proves browser input events are arriving; app/game mappings, profiles and accessibility settings move higher on the list.

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Mouse Polling Rate EstimateEstimate pointer event frequency in the browser.

A pass proves browser input events are arriving; app/game mappings, profiles and accessibility settings move higher on the list.

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Double Click TestCheck intentional double-click timing and event detection.

A pass proves browser input events are arriving; app/game mappings, profiles and accessibility settings move higher on the list.

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Mouse Scroll Wheel TestVerify vertical and horizontal wheel events.

A pass proves browser input events are arriving; app/game mappings, profiles and accessibility settings move higher on the list.

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Diagnostic focus

Problems worth separating on this model

01 · Bluetooth works but receiver path does notReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.
02 · Pointer movement vs Logi Options+ configurationReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.
03 · Double-click or button issueReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.
04 · Scroll behaviorReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.
05 · Charging vs wireless connection problemReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.

Exact specifications

Compatibility questions tied to this model

How does MX Master 4 connect to computers?Logitech documents MX Master 4 for Business with two wireless connection paths: a Logi Bolt USB-C receiver and Bluetooth. Logitech also lists Windows, macOS, Linux, ChromeOS, iPadOS and Android in the product's compatibility table.
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Evidence handoff

If the browser cannot reach the suspected subsystem

Keep the browser result as one observation, then move to the operating system or manufacturer diagnostic that can see the protected hardware state. Do not interpret an unsupported browser API as a failed component.

For model-specific firmware, drivers or service diagnostics, use the official Logitech source linked on this page.