Hi Catties,
Good day!
Thanks for reaching out to us. The only option you have is for an Intel Centrino Advanced Wireless-N6230 Half Mini-Card, 802.11 a/b/g/n + Bluetooth 3.0, Intel Wi-Di other than the N6235. Can you Update the Wireless Card Drivers using this link http://dell.to/12QP7Pr. And also, kindly accept my friend request for a more secure conversation. Once Accepted, just send me the Service tag of your system and I'll look into all optins possible.
Thanks and Regards,
DELL_ Andrew F.
Social Media and Community Professional