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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. Nhazi
1.1 Ntinye batrị
The Logitech Signature M550 mouse requires one AA battery, which is included. To install the battery:
- Chọta mkpuchi nke ebe batrị ahụ n'okpuru òké ahụ.
- Mepee mkpuchi ahụ oghe.
- Insert the AA battery, ensuring correct polarity (+ and - ends).
- Close the battery compartment cover until it clicks into place.
The mouse is designed for a 24-month battery life, which may vary based on usage.
1.2 Ijikọ òké gị
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.
- Plug the Logi Bolt USB receiver into an available USB-A port on your computer.
- Gbanye òké ahụ site na iji ihe mgba ọkụ dị n'okpuru ya.
- Òké kwesịrị jikọọ na akpaghị aka na nnata.

Figure 3: Logi Bolt USB-A Receiver
1.2.2 Using Bluetooth Low Energy
Iji jikọọ site na Bluetooth:
- Gbanye òké ahụ site na iji ihe mgba ọkụ dị n'okpuru ya.
- Press and hold the button on the bottom of the mouse until the LED indicator starts blinking rapidly, indicating pairing mode.
- Na kọmputa ma ọ bụ ngwaọrụ gị, mepee ntọala 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. Ntuziaka ọrụ
2.1 SmartWheel Scrolling
The Signature M550 features a SmartWheel that adapts to your scrolling needs:
- Nzizi n'ahịrị n'ahịrị: Maka nkọwa zuru ezu gbasara akwụkwọ na mpempe akwụkwọ.
- 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 Pịa mkpọtụ n'olu dara ụda
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 Ergonomics and Comfort
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. Nlekọta
3.1 nnọchi batrị
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 Cleaning Your Mouse
To ensure proper function and hygiene, periodically clean your mouse:
- Gbanyụọ òké ahụ tupu ị hichaa ya.
- Jiri akwa dị nro na nke enweghị mmiri ọkụ dampejiri mmiri ma ọ bụ ihe eji asacha ihe nke nwere ike ime ka ọ dị mfe iji.
- 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.
- Kwe ka òké kpoo kpamkpam tupu ịgbanye ya azụ.
4. Nchọpụta nsogbu
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Òké anaghị aza | Low battery; Mouse is off; Connectivity issue (receiver unplugged/Bluetooth disconnected) | Replace battery; Turn on mouse; Re-plug USB receiver or re-pair Bluetooth. |
| Ntugharị cursor na-adịghị agwụ agwụ | Dirty optical sensor; Unsuitable surface; Interference | Clean optical sensor; Use on a clean, non-reflective surface; Move mouse closer to receiver/device. |
| Njikọ Bluetooth ada ada | 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. |
| bọtịnụ akụkụ anaghị arụ ọrụ | Logitech Options+ software not installed or configured | Install Logitech Options+ software and configure button assignments. |
For further assistance, visit the Logitech support websaịtị.
5. Nkọwapụta
- Ụdị: M550
- Njikọta: Bluetooth Low Energy, Logi Bolt USB Receiver
- Teknụzụ nchọpụta ngagharị: Ngwa anya
- Ụdị batrị: 1 x AA batrị (gụnyere)
- Ndụ batrị: Ruo ọnwa 24 (nwere ike ịdị iche dabere na ojiji)
- Arọ: 3.44 ounces
- Ndakọrịta sistemụ arụmọrụ: Windows, macOS, Linux, Chrome OS, iPadOS, gam akporo
- Atụmatụ pụrụ iche: 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%)
- Onye nrụpụta: Logitech
- Mba onye si: China
- Ụbọchị mbụ dị: Jenụwarị 1, 2024
6. Akwụkwọ ikike & Nkwado
6.1 Ozi akwụkwọ ikike
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 websaịtị. Debe ihe akaebe nke ịzụrụ maka akwụkwọ ikike.
6.2 Nkwado ndị ahịa
For technical support, product inquiries, or troubleshooting assistance, please visit the Logitech support websaịtị:
You may also find helpful resources, FAQs, and driver downloads on their websaịtị.





