After update my mac to 'El Capitan' everything worked fine, except my wireless antenna. I looked everywhere for a solution, and after a many tries, it finaly worked, using more then one solutions that I found at the same time, so I decided to create these step by step to everyone.
Installation of USB Wireless Antenna (chipsets RT2870 or RT3070) using the software 'BearExtender 5.4'.
- OS X 10.11.x (El Capitan)
Installation (software)
1) Remove workaround first - RESTART
2) Remove old files - RESTART
3) Install 5.4 (BearExtender) - DONT RESTART YET!
4) Connect the USB Wireless Antenna
Installation (driver)
5) Run EasyKext Utility
6) Drag RT2870USBWirelessDriver.kext to it - RESTART
Deactivation of the SIP (System Integrity Protection) Kext Signing Protection
7) Restart your Mac on Recovery Mode
- Restart and hold “Command” + “R”
8) Open “Terminal”
- At “Utilities” menu
9) Type “csrutil - -without kext”
10) A success message should appear:
- “Successfully enable System Integrity Protection. Please restart the machine for the changes to take effect.”
10b) An error message may appear (it’s OK)
- “csrutil: requesting an unsupported configuration. This is likely to break in the future and leave your machine in a unknown state.”
11) If the message on item 10 appears you may RESTART you Mac
Your USB Wireless Antenna is now working in your mac with “El Capitan”!
Enjoy!
I put all the archives required, including this 'step by step' in a .dmg file.
View attachment BearExtender 5.4 (El Capitan Ready for chipsets RT2870 or RT3070).dmg.zip