DriverCove

Realtek Bluetooth Driver - 11 Driver 1.11.4032.3009/1.1071.2406.2401/18.4032.0.3010/20.4039.0.1939

by Lenovo

This release in brief

  • The newest of 6 releases of this driver in the catalog.
  • 1.11.4032.3009/1.1071.2406.2401/18.4032.0.3010/20.4039.0.1939 came out 4 months after the previous release, 2.10.1072.3005/18.4017.2411.1908/1.9.1051.3008/1.1071.2406.2401.
  • Compared with the previous release: 2 hardware IDs added.

What you are downloading

This file comes straight from Lenovo's own download server. We do not host it, repack it or change it in any way - the download button takes you to the manufacturer's server, not to a file of ours.

Package
m4blt27us14.exe, 2.7 MB
Published by
Realtek Semiconductor Corp.
Digitally signed
Windows checks this signature before installing
Inside
25 files - the driver itself, its setup instructions and a digital signature file
Show the full list
  • DriverSetup.exe934 KB
  • M4BLT27US14.html28 KB
  • RtkBtFilter2.sys206 KB
  • RtkBtManServ.exe394 KB
  • rtkbtfilter.cat13 KB
  • rtkbtfilter.inf5 KB
  • rtl8852b_mp_chip_new.dat70 KB
  • rtl8852bd_mp_chip_new.dat71 KB
  • rtl8852c_mp_chip_new.dat80 KB
  • RtkBtFilter2.sys205 KB
  • RtkBtManServ.exe323 KB
  • rtkfilter.cat12 KB
  • rtkfilter.inf4 KB
  • rtl8822c_mp_chip_new.dat68 KB
  • RtkBtFilter2.sys217 KB
  • RtkBtManServ.exe213 KB
  • rtkbtfilter.cat12 KB
  • rtkbtfilter.inf3 KB
  • rtl8922a_mp_chip_new.dat347 KB
  • PidVid_List.dat8 KB
  • RtkBtFilter.sys835 KB
  • RtkBtManServ.exe597 KB
  • Rtkfilter.inf4 KB
  • rtkfilter.cat13 KB
  • rtl8852a_mp_chip_bt40_fw_asic_rom_patch_new.dat66 KB

Nothing happens on its own: you download the file and decide yourself whether to install it.

Manufacturer
Lenovo
Device
Realtek Bluetooth LEAI Driver
Driver version
1.11.4032.3009/1.1071.2406.2401/18.4032.0.3010/20.4039.0.1939
Release date
April 13, 2026
Supported Windows
Windows 11
Architecture
64-bit (x64)
File size
2.7 MB
File name
m4blt27us14.exe
Digital signature
Signed - catalog RtkBtfilter.cat
INF version
10/31/2025,18.4032.0.3010
INF provider
Realtek Semiconductor Corp.
Device class
Bluetooth
Source
Lenovo official catalog
Last verified
August 10, 2026
SHA-256
41df4d2bd48eea651e2c0e19e2bf2e5a6877ba3851b2b3501ea0c1d82a37a38b

Supported devices (1)

Supported hardware IDs (8)

Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.

How to install

Before you start: create a restore point (Start → type "Create a restore point" → Create). It takes a minute and lets you undo everything if the new driver turns out worse than the old one. This driver is made for Windows 11 (64-bit) - if your Windows is different, look for another version further down the page.

  1. Download the file with the button above - it comes directly from Lenovo official catalog.
  2. Double-click the downloaded file and follow the prompts - the installer does the rest.
  3. If it asks to restart the computer, let it.

Check it worked: open Device Manager again. The device should no longer show a warning icon, and its driver version should match the one on this page.

How to roll back

If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If that button is greyed out, use the restore point you made before installing (Start → "Recovery" → Open System Restore).

Other versions of this driver

  • Package size: 2.70 MB, the same as the previous release.
VersionReleasedSource
2.10.1072.3005/18.4017.2411.1908/1.9.1051.3008/1.1071.2406.2401December 16, 2025Lenovo official catalog
1.9.1051.3008December 4, 2025Lenovo official catalog
1.9.1051.3008/1.1071.2406.2401/18.4028.0.3005/18.4032.2411.1918November 26, 2025Lenovo official catalog
1.8.1030.3007December 22, 2021Lenovo official catalog

If the device still does not work

More Lenovo bluetooth drivers