Smartphone cannot detect the Bluetooth name but can detect the Computer name

My computer is a Dell Inspiron with an OS of Windows 7 Home Basic. I renamed my Bluetooth device but when I plugged my smartphone in my computer, it can only detect the computer name, but not the bluetooth name when searching for any Bluetooth devices. What is weird is that my iPad 2 can detect and display the bluetooth name of my computer.
Before, my computer's name was the same as with its bluetooth name. However, when I changed the latter, my smartphone can only detect the computer's name.
Can someone please assist me?
