I love a challenge and so will you, I hope. This is a relatively new device and we are going to have to experiment a bit. Please download RT539x PCIe here: http://www.ralinktech.com/en/04_supp...ort.php?sn=501

Download it to your desktop. Right-click it and select 'extract here.' It is handily a bz2.bz2 file, so you may have to 'extract here' a couple of times. Good work, Ralink! Now open a terminal and, with an internet connection, do:
Code:
sudo apt-get install linux-headers-generic build-essential
Open the folder you extracted and drill down to os/linux/config.mk and with a text editor change:
Code:
HAS_NATIVE_WPA_SUPPLICANT_SUPPORT=y
Proofread, save and close the text editor. Now open the file os/linux/pci_main_dev.c with a text editor. Make the addition I've highlighted here:
Code:
#ifdef RT5390
 {PCI_DEVICE(NIC_PCI_VENDOR_ID, NIC5390_PCIe_DEVICE_ID)},
 {PCI_DEVICE(NIC_PCI_VENDOR_ID, NIC539F_PCIe_DEVICE_ID)},
 {PCI_DEVICE(NIC_PCI_VENDOR_ID, NIC5392_PCIe_DEVICE_ID)},
 {PCI_DEVICE(NIC_PCI_VENDOR_ID, NIC5362_PCI_DEVICE_ID)},
        {PCI_DEVICE(NIC_PCI_VENDOR_ID, NIC5360_PCI_DEVICE_ID)},
#endif /* RT5390 */
Everything before and after is unchanged. Spacing, punctuation, brackets, etc. are crucial. Proofread carefully twice before you save and close the text editor. Now back to the terminal:
Code:
cd Desktop/2011
Press Tab and the rest will fill in automagically. Press Enter.
Code:
sudo su
make
make install
modprobe rt5390sta
echo rt5390sta >> /etc/modules
exit
Your wireless should now be working.