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The Logitech Signature M550 Wireless Mouse is designed for enhanced comfort and productivity. It features an adaptive SmartWheel for precise and fast scrolling, silent clicks, and versatile connectivity options. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your M550 mouse.

Figure 1: Logitech Signature M550 Wireless Mouse (Black, Small/Medium Size)
1. Configuració
1.1 Instal·lació de la bateria
The Logitech Signature M550 mouse requires one AA battery, which is included. To install the battery:
- Localitzeu la tapa del compartiment de la bateria a la part inferior del ratolí.
- Feu lliscar la coberta oberta.
- Insert the AA battery, ensuring correct polarity (+ and - ends).
- Tanqueu la tapa del compartiment de la bateria fins que encaixi al seu lloc.
The mouse is designed for a 24-month battery life, which may vary based on usage.
1.2 Connexió del ratolí
The Signature M550 offers two connectivity options: Bluetooth Low Energy or the Logi Bolt USB receiver.

Figure 2: Connectivity options: Bluetooth and Logi Bolt USB receiver
1.2.1 Using the Logi Bolt USB Receiver
The Logi Bolt USB receiver is typically stored inside the mouse's battery compartment or provided alongside it. To connect:
- Remove the Logi Bolt USB receiver from its storage slot.
- Connecteu el receptor USB Logi Bolt a un port USB-A disponible de l'ordinador.
- Engegueu el ratolí amb l'interruptor d'engegada que es troba a la part inferior.
- El ratolí s'hauria de connectar automàticament al receptor.

Figure 3: Logi Bolt USB-A Receiver
1.2.2 Using Bluetooth Low Energy
Per connectar-se mitjançant Bluetooth:
- Engegueu el ratolí amb l'interruptor d'engegada que es troba a la part inferior.
- Press and hold the button on the bottom of the mouse until the LED indicator starts blinking rapidly, indicating pairing mode.
- A l'ordinador o dispositiu, obriu la configuració de Bluetooth.
- Select "Logitech M550" from the list of available devices and follow any on-screen prompts to complete pairing.
The mouse is compatible with Windows, macOS, Linux, Chrome OS, iPadOS, and Android operating systems.
2. Instruccions de funcionament
2.1 SmartWheel Scrolling
The Signature M550 features a SmartWheel that adapts to your scrolling needs:
- Line-by-line precision: Per a una navegació detallada en documents i fulls de càlcul.
- Super-fast free spin: Automatically engages for rapid scrolling through long web pages or documents with a flick of the wheel.

Figure 4: Precision and speed scrolling with SmartWheel
2.2 Silent Clicks
The mouse incorporates Logitech's SilentTouch technology, reducing click noise by 90% compared to traditional mice. This feature allows for a quieter working environment.

Figure 5: Enjoy 90% less clicking noise
2.3 Customizable Side Buttons
The Signature M550 includes customizable side buttons. To configure these buttons, download and install the Logitech Options+ software from the official Logitech website. This software allows you to assign various functions to the side buttons, enhancing your workflow.
2.4 Ergonomia i comoditat
The mouse is designed with a contoured shape, soft thumb area, and rubber side grips to provide comfort during extended use. It is available in sizes optimized for small to medium-sized hands (M550) and larger hands (M550 L).

Figure 6: The optimal fit for your hand (M550 vs. M550 L)
3. Manteniment
3.1 Substitució de la bateria
When the mouse battery is low, the LED indicator may change color or blink. To replace the battery, follow the steps outlined in Section 1.1 Battery Installation. Use a fresh AA alkaline battery for optimal performance.
3.2 Neteja del ratolí
To ensure proper function and hygiene, periodically clean your mouse:
- Apagueu el ratolí abans de netejar-lo.
- Utilitzeu un drap suau i sense pelusa dampnetejat amb aigua o una solució de neteja segura per a electrònica.
- Wipe down the exterior of the mouse. Avoid getting moisture into openings.
- For the optical sensor on the underside, use a dry cotton swab to gently remove any dust or debris.
- Deixeu que el ratolí s'assequi completament abans de tornar-lo a encendre.
4. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El ratolí no respon | Low battery; Mouse is off; Connectivity issue (receiver unplugged/Bluetooth disconnected) | Replace battery; Turn on mouse; Re-plug USB receiver or re-pair Bluetooth. |
| Moviment erràtic del cursor | Dirty optical sensor; Unsuitable surface; Interference | Clean optical sensor; Use on a clean, non-reflective surface; Move mouse closer to receiver/device. |
| L'aparellament de Bluetooth falla | Mouse not in pairing mode; Device Bluetooth off; Interference | Ensure mouse is in pairing mode (blinking LED); Enable Bluetooth on device; Reduce distance between mouse and device. |
| Els botons laterals no funcionen | Logitech Options+ software not installed or configured | Install Logitech Options+ software and configure button assignments. |
For further assistance, visit the Logitech support weblloc.
5. Especificacions
- Model: M550
- Connectivitat: Bluetooth de baix consum, receptor USB Logi Bolt
- Tecnologia de detecció de moviment: Òptic
- Tipus de bateria: 1 x bateria AA (inclosa)
- Durada de la bateria: Fins a 24 mesos (pot variar segons l'ús)
- Pes: 3.44 unces
- Compatibilitat del sistema operatiu: Windows, macOS, Linux, Chrome OS, iPadOS, Android
- Característiques especials: Silent Clicks (SilentTouch Technology), SmartWheel (precision and hyper-fast scrolling), Customizable Side Buttons, Ergonomic Design, Made with certified post-consumer recycled plastic (Graphite: 65%, Off-White/Rose: 26%)
- Fabricant: Logitech
- País d'origen: Xina
- Data de primera disponibilitat: 1 de gener de 2024
6. Garantia i assistència
6.1 Informació de la garantia
Logitech products typically come with a limited hardware warranty. For specific warranty terms and conditions applicable to your Logitech Signature M550 Wireless Mouse, please refer to the warranty card included with your product or visit the official Logitech support weblloc web. Conserveu el comprovant de compra per a reclamacions de garantia.
6.2 Atenció al client
For technical support, product inquiries, or troubleshooting assistance, please visit the Logitech support weblloc:
You may also find helpful resources, FAQs, and driver downloads on their weblloc.





