Hi anton27,
Please open the Owner's Manual that I have shared with you in my initial reply. Check page numbers 31,32 and 33 for complete instructions on removing and replacing the wireless card. For your reference below is the procedure to remove the wireless card:
- Disconnect the antenna cables from the connectors on the Mini-Card.
- Remove the screw that secures the Mini-Card to the system-board connector.
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- Lift the Mini-Card out of the system-board connector.
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Note: Please read through the pages for complete set of instructions. Also, make sure that you follow the all the safety guidelines.
Hope this helps. Reply if you have any questions, I'll be happy to assist further.