Realtek 8922AE Bluetooth Driver - 11 Driver 20.4045.0.1941
by Lenovo
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
- m4blt30us14.exe, 2.8 MB
- Published by
- Realtek Semiconductor Corp.
- Digitally signed
- Windows checks this signature before installing
- Inside
- 26 files - the driver itself, its setup instructions and a digital signature file
Show the full listHide the list
- DriverSetup.exe934 KB
- M4BLT30US14.html28 KB
- RtkBtFilter2.sys196 KB
- RtkBtManServ.exe384 KB
- rtkbtfilter.cat13 KB
- rtkbtfilter.inf5 KB
- rtl8852b_mp_chip_new.dat70 KB
- rtl8852bd_mp_chip_new.dat65 KB
- rtl8852c_mp_chip_new.dat80 KB
- PidVid_List.dat4 KB
- RtkBtManServ.exe578 KB
- RtkBtfilter.sys832 KB
- Rtkfilter.inf4 KB
- rtkfilter.cat13 KB
- rtl8822c_mp_chip_bt40_fw_asic_rom_patch_new.dat68 KB
- RtkBtFilter2.sys211 KB
- RtkBtManServ.exe264 KB
- rtkbtfilter.cat12 KB
- rtkbtfilter.inf3 KB
- rtl8922a_mp_chip_new.dat403 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
20.4045.0.1941- Release date
- July 28, 2026
- Supported Windows
- Windows 11
- Architecture
- 64-bit (x64)
- File size
- 2.8 MB
- File name
m4blt30us14.exe- Digital signature
- Signed - catalog
RtkBtfilter.cat - INF version
09/30/2025,18.4032.0.3007- INF provider
- Realtek Semiconductor Corp.
- Device class
- Bluetooth
- Source
- Lenovo official catalog
- Last verified
- October 5, 2026
- SHA-256
89ef7681aa4dcb152a17b07479350499ecbdc7f1f74333096a5f5a915b659ff7
Supported devices (1)
Supported hardware IDs (5)
- USB\VID_0BDA&PID_4853
- USB\VID_0BDA&PID_5852
- USB\VID_0BDA&PID_D922
- Realtek Bluetooth LEAI DriverUSB\VID_0BDA&PID_D923
- USB\VID_0BDA&PID_B853
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.
- Download the file with the button above - it comes directly from Lenovo official catalog.
- Double-click the downloaded file and follow the prompts - the installer does the rest.
- 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).