BM05E-V2 01 Bluetooth driver is a software package specifically designed for older USB Bluetooth adapters or dongles, typically based on the Bluetooth V2.1 + EDR (Enhanced Data Rate)
standard. This driver allows your operating system to recognize the hardware and communicate with peripherals like headphones, keyboards, and mice. Driver Specifications 8.1.4222.0 (Common stable version). Technology:
Bluetooth V2.1 + EDR, which improves data transfer speeds and connection stability over older standards. Compatibility:
Supported on Windows XP, Vista, 7, 8, 8.1, and Windows 10 (32-bit and 64-bit). How to Install the Driver
Since this is often a "Generic Bluetooth Adapter," you can typically install it using these methods: Windows Update (Recommended): Plug in the dongle and go to Settings > Windows Update > Check for updates . Windows often finds the driver automatically. Device Manager Update: Right-click the button and select Device Manager
Find the device (often listed under "Other devices" or "Bluetooth"). Right-click it and select Update driver Search automatically for drivers Manual Download: bm05e-v2 01 bluetooth driver
If the above fail, you can download specific packages from sites like DriverScape DriverIdentifier Common Troubleshooting "Device not recognized":
Ensure the dongle is firmly plugged in. Try a different USB port. Conflict with Built-in Bluetooth:
If your laptop already has Bluetooth, the USB dongle may conflict. You must disable the internal Bluetooth in Device Manager before the dongle will work. Hardware ID Check:
If you aren't sure this is the right driver, right-click the device in Device Manager, go to Properties > Details , and select Hardware Ids . Look for USB\VID_1690&PID_0741 to confirm it matches this specific chipset. Are you experiencing a specific error message or is the device not showing up in your Device Manager at all? USB Bluetooth Driver (V2.1+EDR) Drivers Download
USB Bluetooth Driver (V2. 1+EDR) Drivers Download * Driver Version: 8.1.4222.0. * Release Date: 2014-06-22. * File Size: 81.17M. * Driver Scape BM05E-V2 01 Bluetooth driver is a software package
Rarely, a driver issue is actually a firmware bug. Check your firmware version via:
reg query HKLM\SYSTEM\CurrentControlSet\Services\BTHPORT\Parameters\Keys
Or use Bluetooth Log Viewer.
To update firmware:
.dfu) inside driver packages under C:\Program Files (x86)\Realtek\Bluetooth\Firmware.RTKBT_FW_Download_Tool.exe (included with some OEM drivers).The BM05E-V2 01 often uses the btusb kernel module.
# Update firmware
sudo apt install firmware-realtek
sudo modprobe -r btusb
sudo modprobe btusb
# Reboot
sudo systemctl restart bluetooth
Check status: hciconfig -a or bluetoothctl Or use Bluetooth Log Viewer
The BM05E-V2-01 driver supports three power states:
| State | Current | Enter by |
| :--- | :--- | :--- |
| Active | 5–8 mA | bm05e_wake(1) |
| Sniff | 0.5 mA | Automatic after 2s idle |
| Deep Sleep | < 10 µA | bm05e_sleep() via GPIO_PWR_CTRL |
Wake sequence: Pull PWR_CTRL HIGH → Wait 5ms → Send 0x55 over UART.
.inf.lsusb and dmesg – share output if you want help matching a driver.If you give me the VID/PID (USB) or the exact chip model, I can point you to an existing driver or the correct SDK.
import serial
import time
C. The Broadcom BCM20702 Driver
- Identifier: Generic Bluetooth chipset used in many receivers.
- Driver Name: Broadcom Bluetooth Driver.
- Where to get it: Broadcom's consumer drivers are often hard to find on their site; usually, these are provided via Windows Update automatically.