Connect my new bluetooth mouse

palpart 0 Reputation points
2026-09-10T16:31:59.82+00:00

I recent replaced my Surface 9 Modern Mobile Mouse due to inability to get the scroll wheel to operate correctly (likely due to dirt on the internal contacts which I was unable to remove). The new mouse won't connect to the Surface 9. Initially it connected momentarily and then switched back and forth between Connected and Not Connected. The eventually is just said nothing, although it does show up on the BT device list. How can I get the new mouse to connect?

fwiw - The new mouse is called a Microsoft Surface Mobile Mouse Souris Mouse on the packaging. It is an actual Microsoft product, not a clone or lookalike. What is Souris?

Surface | Accessories | Surface mice and keyboards
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  1. Idham Zulhendy 0 Reputation points
    2026-09-11T10:42:51.0366667+00:00

    1. What Does "Souris" Mean?

    "Souris" is simply the French word for "Mouse." Microsoft ships its retail accessories in bilingual or multilingual packaging for global markets (such as Canada or Europe). Packaging reading "Microsoft Surface Mobile Mouse / Souris Mouse" is official Microsoft retail stock.

    2. Resolving the "Connected / Not Connected" Flapping Loop

    When a new Bluetooth device toggles continuously between Connected and Not Connected before dropping off, it usually indicates stale pairing keys cached in Windows or a incomplete Bluetooth handshake.

    To resolve this issue, perform the following troubleshooting steps in order.

    Step 1: Fully Unpair and Remove the Phantom Device

    Go to Start > Settings > Bluetooth & devices > Devices.

    Find the mouse in the list, click the three dots (...) next to it, and select Remove device.

    Turn off Bluetooth on your Surface Pro 9 using the toggle switch in Settings, wait 5 seconds, and turn it back on.

    Step 2: Clear the Mouse Hardware Memory

    Turn the mouse over.

    Press and hold the power/pairing button on the bottom of the mouse for 5 to 8 seconds until the LED light begins to blink rapidly. (If it is solid or blinking slowly, it is not in full pairing/discovery mode).

    Step 3: Re-pair Using Swift Pair

    Bring the mouse close to your Surface Pro 9 while the light is rapidly blinking.

    Windows 11 should display a pop-up banner reading "New Surface Mobile Mouse found." Click Connect.

    If no pop-up appears:

    Go to Settings > Bluetooth & devices > Add device > Bluetooth.

      Select __Surface Mobile Mouse__ when it appears in the discovery list.

    Verification: Once paired, move the mouse across your screen for 30 seconds to ensure the status in Settings > Bluetooth & devices remains steady at "Connected".

    Step 4: Reset the Windows Bluetooth Stack (If it drops again)

    If the mouse drops connection again after re-pairing:

    Right-click the Start menu and select Device Manager.

    Expand the Bluetooth section.

    Right-click Intel(R) Wireless Bluetooth(R) (or Marvell AVASTAR Bluetooth Radio Adapter) and select Uninstall device. (Do not check the box to delete driver software).

    Restart your Surface Pro 9. Windows will automatically reinstall a fresh copy of the Bluetooth adapter driver upon startup.

    Verification: Put the mouse into pairing mode (blinking LED) and repeat Step 3.

    1. What Does "Souris" Mean?

    "Souris" is simply the French word for "Mouse." Microsoft ships its retail accessories in bilingual or multilingual packaging for global markets (such as Canada or Europe). Packaging reading "Microsoft Surface Mobile Mouse / Souris Mouse" is official Microsoft retail stock.

    2. Resolving the "Connected / Not Connected" Flapping Loop

    When a new Bluetooth device toggles continuously between Connected and Not Connected before dropping off, it usually indicates stale pairing keys cached in Windows or a incomplete Bluetooth handshake.

    To resolve this issue, perform the following troubleshooting steps in order.

    Step 1: Fully Unpair and Remove the Phantom Device

    Go to Start > Settings > Bluetooth & devices > Devices.

    Find the mouse in the list, click the three dots (...) next to it, and select Remove device.

    Turn off Bluetooth on your Surface Pro 9 using the toggle switch in Settings, wait 5 seconds, and turn it back on.

    Step 2: Clear the Mouse Hardware Memory

    Turn the mouse over.

    Press and hold the power/pairing button on the bottom of the mouse for 5 to 8 seconds until the LED light begins to blink rapidly. (If it is solid or blinking slowly, it is not in full pairing/discovery mode).

    Step 3: Re-pair Using Swift Pair

    Bring the mouse close to your Surface Pro 9 while the light is rapidly blinking.

    Windows 11 should display a pop-up banner reading "New Surface Mobile Mouse found." Click Connect.

    If no pop-up appears:

    Go to Settings > Bluetooth & devices > Add device > Bluetooth.

      Select __Surface Mobile Mouse__ when it appears in the discovery list.

    Verification: Once paired, move the mouse across your screen for 30 seconds to ensure the status in Settings > Bluetooth & devices remains steady at "Connected".

    Step 4: Reset the Windows Bluetooth Stack (If it drops again)

    If the mouse drops connection again after re-pairing:

    Right-click the Start menu and select Device Manager.

    Expand the Bluetooth section.

    Right-click Intel(R) Wireless Bluetooth(R) (or Marvell AVASTAR Bluetooth Radio Adapter) and select Uninstall device. (Do not check the box to delete driver software).

    Restart your Surface Pro 9. Windows will automatically reinstall a fresh copy of the Bluetooth adapter driver upon startup.

    Verification: Put the mouse into pairing mode (blinking LED) and repeat Step 3.

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  2. Clary-N 15,735 Reputation points Microsoft External Staff Moderator
    2026-09-11T01:01:42.4633333+00:00

    Hi palpart,

    Thank you for sharing the details. If you have already tried the standard Bluetooth and pairing suggestions, I also recommend running the automated Bluetooth troubleshooter through the Get Help app. After it completes, restart your Surface and check whether the connection improves.

    If the problem continues, open Device Manager > Bluetooth, right-select the Bluetooth adapter and choose Update driver > Search automatically for drivers. You can also open the Surface app > Help & support to check the device’s health and run the available Surface diagnostic tool.

    As an isolation test, try connecting the mouse to another computer. If it fails there as well, the replacement mouse may be defective, so exchanging it would be the most practical next step. If it works normally on another computer, the problem is more likely on the Surface side and I suggest contacting Surface Support through the Surface or Get Help app.

    Also, please press Windows key + R, type winver and press Enter. Let me know the Windows version and OS build shown in the window. Please do not include your product ID or any other personal information.

    Please let me know how the mouse behaves on another computer and share the Windows version and build when convenient.

    If you have extra questions about this answer, please click "Comment".  

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  3. AI answer

    2026-09-10T16:32:24.6966667+00:00

    Try this in order:

    1. Make sure the mouse is in pairing mode.
      • Press and hold the button on the bottom of the mouse until the LED starts flashing.
      • For Surface Mobile Mouse, this is usually about 3 seconds. In the Surface mouse troubleshooting steps, holding for 5–7 seconds is also used to make it discoverable.
    2. Remove the existing mouse entry from Bluetooth and pair it again.
      • Since the mouse already appears in the Bluetooth device list and was switching between Connected and Not Connected, remove that saved entry first, then re-pair it.
      • In Windows, go to Start > Settings > Devices > Bluetooth & other devices and remove the mouse from the list.
      • Then select Add Bluetooth or other device > Bluetooth, choose Surface Mobile Mouse, and complete pairing.
    3. Confirm Bluetooth is on and retry pairing.
      • Go to Start > Settings > Devices > Bluetooth & other devices.
      • Make sure Bluetooth is turned on before adding the mouse again.
    4. Check that the mouse has power.
      • Press and hold the pairing button for 5–7 seconds.
      • If the light blinks, the mouse has power.
      • If the light does not come on, check or replace the batteries.
      • Surface Mobile Mouse uses two AAA batteries.
    5. If pairing still fails, try the Bluetooth connection resets recommended for Surface accessories.
      • Turn airplane mode on, wait 10–15 seconds, then turn it off.
      • Turn off other Bluetooth devices connected to the Surface temporarily, because too many Bluetooth devices can interfere with the connection.
    6. If the pairing light flashes three times and then turns off:
      • That means the mouse is already paired to another PC within range.
      • Remove it from that other PC’s Bluetooth devices list, then return to the Surface 9 and pair it again.
    7. Update Windows.
      • Go to Start > Settings > Update & Security > Windows Update and install available updates.

    About “Souris”: that is the French word for mouse on the packaging.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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