Lenovo UNDP-1 User Manual page 34

replace the Bluetooth driver, as follows:
1. Click Start-->Control Panel.
2. Click Performance and Maintenance; then click System.
3. Click the Hardware tab; then click Device Manager.
4. Double-click Bluetooth Radios to extract the Bluetooth Radios device tree.
5. Double-click the ThinkPad Bluetooth with Enhanced Data Rate icon to open the Properties window.
6. Click the Driver tab; then click Update Driver.
7. Click No, not this time, and then click Next.
8. Select Install from a list or specific location (Advanced), and then click Next.
9. Select Don't search. I will choose the driver to install; then click Next.
10. Select the driver that has no "Digital Signed" icon; then click Next.
11. Click Finish.
Note: If you use the wireless feature (the IEEE 802.11 standard) of your computer simultaneously with a Bluetooth option, data transmission speed
can be delayed and the performance of the wireless feature can be degraded.