with regard to mid2007 freezing after instal, updating ssd firmware was not a fix for me. After the instal of update to 10.8.5 I can not get to the login window, much less a working OS. so I am NOT talking about freezes after loging into a working desktop environement. I'm talking about getting to the grey screen with the apple log and a spinning wheel that freezes. I updated firmware on ssd (on drive bus) =same freeze. I instaled 10.8.5 on spindle drive (super drive bus) = same freeze. I did a clean instal on both (to eliminate 3rd party software conflict like istat etc)=same freeze. I clean installed 10.8.2 on ext. drive which ran fine, then applied update 10.8.5 = same freeze. I booted in verbose mode and in every case the offending error seems to be smc errors which are related to low level fans/power usage.
The ONLY reason I'm adding this late post to this thread is to let people know that I also tried several upgrade instals of Mavericks=same freeze, So the first relase of Mavericks does not fix this code.
Please see if the information in this thread posting helps you:
In this case, disabling wi-fi on older Macs like your resulted in similar freeze issues as your.
Thank You for the post. Man, I whish I had that before doing all the troubleshooting and several SuperDuper restores. lol
I havn't had a boot problem (or any other) after turning off all ipv6 throught the terminal commands and dissabling "show WiFi status in menu bar" to help preventing toggling WiFi off, as described in this post by Xiao Doudou before updating 10.8.4 to 10.8.5 at http:/https://discussions.apple.com/thread/5474520?start=15&tstart=0
This has worked perfectly and allows me to install updates:
I don't plan on going to Mavericks until this issue (and others in Mavericks) are fixed. But for the meantime, your post will be a bigtime help if an update resets those terminal changes and the boot hangs again. THANK YOU!