What to do if your Mac is hit by the Apple Silent Ethernet Killer Update aka “031-51913 Incompatible Kernel Extension Configuration Data 3.28.1” [Updated]

“If you have access to a system that wasn’t updated with Ethernet Killer:

Go to System/Library/Extensions/AppleKextExcludeList.kext and copy the working file extension and transfer the file over to your corrupted computer or partition

Turn off System Integrity Protection (SIP) by restarting in recovery mode (command-R) and go under Utility in the top menu and open Terminal app.

Type in “csrutil disable” and return.

Restart computer and you now with be able to delete the bad
AppleKextExcludeList.kext and drop in the good AppleKextExcludeList.kext

Restart and Ethernet will be recognized again.

Turn the SIP back on by doing step 2 and 3 again but type in “csrutil enable”

Source: Reddit Post “WARNING: Software update #031-51913 breaks Ethernet port on most Macs (BCM5701 driver)”

Update: Apple has published the official fix in this support document.


About MacRyu.com

MacRyu is the Mac Blog by Singaporeans and for Singaporeans. It was started in April 2007 as a side project of the then President of the Official Mac User Group of NUS, Ryu, and grew to become possibly one of the most popular Apple-related sites based in Singapore. MacRyu hopes to provide you with more Mac-related info, thoughts and stuff, from the Singaporean perspective.

Subscribe to RSS (site)

MacRyu’s Web Stats

Interested advertisers can click here to find out more about MacRyu.com's pretty decent web traffic stats.

P.S. Nice! We've hit 284122 hits in July 2010!

P.P.S OMG! We've hit 407548 hits in Oct 2011!

Steve Jobs (1955-2011)

Categories

Google Search