Fix for installing MediaTek USB(RT2870/RT2770/RT3X7X/RT537X) driver in OS X Mavericks
Absolutely no warranties! Proceed at your own risk!
Download driver from here: http://www.mediatek.com/_en/07_downloads/01_windows.php?sn=502
You will need Pacifist: http://www.charlessoft.com
- Ensure your USB Wireless adapter is disconnected and reboot.
- Mount RTUSB D2870-4.2.6.0 UI-4.0.8.0_2012_09_28-2.dmg
- Run the USBWireless-Uninstall.pkg and reboot.
- Open USBWireless-Install.pkg
- Click "Package Contents" then select "Contents of rt2870resources.pkg".
- Click Extract To.. and select your hard disk (which correlates to / ) and click "Choose".
- Check "Use Administrator Privileges" and then click "Extract", entering your administrator password when prompted.
- Open Terminal.app and type: cd /; sudo mv /USBWireless-Install\ Folder /RT2870Resources
- Download the file below, "postinstall", to /RT2870Resources
- In Terminal.app type: chmod a+x /RT2870Resources/postinstall sudo /RT2870Resources/postinstall
- It will take a few minutes for the script to finish running.
- When done shutdown, plug in your USB Wireless adapter, and start back up.
- Your adapter should be active and the Ralink menu should now be in the tool bar and selection "Open Wireless Utility" should now work.
- Configure and done.
Note: I have noticed that in Mavericks the Mountain Lion driver is a bit touchy. You should shutdown your computer before disconnecting from USB, otherwise a sudden kernel panic could follow.
Hi you must replace files with files in attachment below after replace this file repair disk permissions with using kextwizard eg. and restar computer.
After this step try connect to your network, card should work.
IO80211Family.kext ->System/Library/Extensions/
airportd ->usr/libexec/
https://www.dropbox.com/s/lnf7p2m4tpfl9mj/RT73_fix_10.9.4.zip?dl=0