Logitech MK850 Performance Wireless Keyboard and Mouse Combo Repair

The Logitech MK850 Performance is a full-size wireless keyboard and mouse combo engineered for comfort and productivity, featuring a cushioned palm rest, contoured keys, and a sculpted mouse for extended use. It supports multi-device switching, letting users toggle between up to three paired devices. The design uses durable materials intended to withstand daily office use and emphasizes longevity and sustainability in its construction. Key features include multi-device mastery, a nano USB receiver, and long battery life.

The Logitech MK850 Performance Wireless Keyboard and Mouse Combo includes Keyboard (M/N Y-R0061), Mouse (M/N M-R0062) and USB receiver (M/N C-U0007). Model labels are located as follows — Keyboard: on the underside product label; 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: Full-size ergonomic keyboard with cushioned palm rest and contoured mouse
• Model / SKU: 920-008219 (MPN 920-008219)
• Switch Type: Membrane with scissor-switch key mechanism (manufacturer not specified)
• Key Switch Manufacturer: Not specified by Logitech (proprietary membrane/scissor design)
• Connectivity: Logitech Unifying nano USB receiver (2.4 GHz) and Bluetooth multi-device switching
• Mouse Sensor: Optical sensor (manufacturer/model not specified; typical sensitivity up to ~1000 DPI)
• Battery: Keyboard: 2 × AAA; Mouse: 1 × AA (user-replaceable)
• Compatibility: Windows, macOS, Chrome OS, iPadOS; multi-device pairing across computers, tablets, and phones
• Included Components: Keyboard, Contoured Mouse, Logitech Unifying nano receiver (stored in mouse), Documentation
• Color / Finish: Black with textured plastic construction and cushioned palm rest (durable molded plastics)

Common repair-relevant faults include non-responsive keys (often due to worn membrane, debris under keys, or battery/contact issues) and wireless connectivity failures (receiver pairing or depleted batteries). Diagnose by swapping fresh batteries, re-pairing the nano receiver, removing keycaps to inspect/clean the key bed and contacts, and testing the mouse sensor for debris or mechanical wear.

For additional troubleshooting help, visit: Visit https://support.logi.com for product support, drivers and Logi Options+ software.

Limited hardware warranty; typical coverage 1–2 years depending on region. Check Logitech warranty page for regional details.

• https://www.logitech.com/en-us/products/...
• https://support.logi.com/hc/en-us/articl...