Why, after changing the WiFi + BT adapter, the Bluetooth adapter (Intel N-130 -> Advanced 6235) is not detected in the laptop?

Question

Bluetooth

There is a Samsung NP300V5A-SOE laptop
, it originally had a WiFi + BT adapter Intel Centrino N-130. I wanted the charms of 5GHz, Intel WiDi and other things and changed it to Intel Centrino Advanced 6235. With WiFi I got what I wanted - everything works fine, but the Bluetooth adapter from the new card is not detected at all. No one came across, does not tell the reason?
The system does not play a role - everything is the same on win8.1 and ubuntu. In Windows I tried to install and not install Intel drivers - the device is not seen at all. In ubuntu, from the point of view of dmesg, lshw and lspci, there are no bt devices on the machine either.
There is no hardware button in the laptop to turn off the BT, fn + f12 (with the Wi-Fi icon) does not change anything either in Windows or in Ubuntu.

Answer 1

Incompatibility.
A laptop is not a PC system unit, and this happens quite often.

Answer 2

Bluetooth in your card is connected via USB soldered on the MINI-PCI slot. NOT all laptops have USB on the MINI-PCI slot. Try to seal 51 pins with adhesive tape on the adapter (it is the right one if you look at the adapter from the side of the antenna connectors), but it’s not a fact that it will be detected, you won’t bring harm to the laptop. Most likely, you simply do not have a USB on the PCI slot, as I did. Humble yourself.