Logitech WIRELESS MOUSE M545 Repair

The Logitech Wireless Mouse M545 is an ergonomic, right/left-hand compatible wireless mouse designed for everyday computing and laptop use. It features a side-to-side scroll wheel, two thumb buttons, and programmable controls via Logitech software, with a nano-sized Unifying USB receiver for reliable 2.4 GHz connection. The design uses a durable plastic housing and robust mechanical components intended for long service life, and Logitech rates the mouse for extended battery life (up to 18 months) with smart sleep features. Its compact footprint and long battery life make it a common choice for mobile and office users.

The Logitech WIRELESS MOUSE M545 includes Mouse (M/N M-R0055) and USB receiver (M/N C-U0012). Model labels are located as follows — Mouse: on the underside product label; USB Receiver: printed on the flat face or side of the receiver housing near the USB plug. Each component carries its own model (M/N) and serial (S/N) identifiers.

• Form Factor: Ergonomic, ambidextrous shape for right/left hand use
• Model Number (M/N): 910-004054
• ASIN / Item Code: ASIN B01B4SNL52
• Connectivity: Logitech Unifying nano USB receiver (2.4 GHz)
• Wireless Standard: 2.4 GHz RF (Logitech Unifying)
• Power / Battery: Battery powered — 1 Lithium Polymer battery required (included); advertised battery life up to 18 months (smart sleep)
• Physical Dimensions: 14.4 x 8.89 x 2.108 cm (as listed)
• Weight: 95.54 g (listed)
• Buttons: Left/right click, clickable side-to-side scroll wheel, 2 programmable thumb buttons
• Optical Sensor / DPI: Optical sensor (resolution not specified by product page)
• Switches: Primary button microswitch manufacturer/model not disclosed by Logitech for this product
• Software Compatibility: Compatible with Windows and macOS via Logitech Options (serial number check on underside may affect Options compatibility); also compatible with basic SetPoint features on Windows

Common repair-relevant faults include unresponsive clicks/double-clicking (often caused by worn microswitches), scroll wheel stiction or erratic scrolling, and connectivity issues due to depleted batteries or receiver pairing. Diagnose by first swapping or checking the battery, re-plugging/re-pairing the Unifying receiver, cleaning the optical sensor and scroll wheel, and if button faults persist, open the case to inspect switches and solder joints for wear or damage.

For additional troubleshooting help, visit: See Logitech Support (support.logi.com) for product registration, software (Logitech Options), and contact details.

Returns via retailer policies (Amazon: 30-day return window for purchases from Amazon.ca) and Logitech warranty information available on Logitech's support site; regional warranty terms vary.

• https://www.amazon.ca/Logitech-Wireless-...
• https://support.logi.com/hc/en-us/articl...