X200s WiFi network Card is not shown in Device Manager

Hello,
I have a X200s laptop. WinXp is installed on it.
The problem is that the WiFi network card is not listed  in device manager under network cards. And the Wifi led is always off. Only bluetooth and Wireless wan leds are on.
Can anyone help me, I need to let the XP detevt the WIFI adapter.
Thank you.

i have the same problem. Can you tell what to do

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