MacBookPro Early 2011 updated to Yosemite will no longer boot.
Hi All,
I had a Mac issue a few months ago where it started to work very slow, lagging, the turning ball kept appearing.
I backed up what I needed therefore, I care less about the data.
Since then, at some point I wanted to encrypt it but I believe I might have done something to it with an interruption. In any case it kept working and that bar started appearing bellow the apple logo.
Shortly after -> completely unbootable.
My troubleshoot so far:
1. Reboot -> nothing
2. Single user mode -> ran the shown commands and said the Drive is OK -> rebooted -> nothing.
3. Ran in verbose mode, saw several errors:
BUG in process suhel[perd[136 (and 139)]: over released legcay external boost assertions (1 total, 1 external, 0 legacy -external)
also saw in the work up of verbose _> error 107 rebuilding /system/library/Caches/com.apple.kext.caches/startup/kernelcache
Also a Warning: couldnt block sleep duringncache update
and Warning: proceeding without DlskArb
Previous shutdown cause -128
DSMOS has arrived
What else did I do:
Tried the AHT -> ran normal test and extensive test -> Both reported that there "are no troubles"
I tried Cmd+R and just R -> a few times I saw the spinning globe asked me for WiFi pw -> no success. Reboots and cant enter any GUI
Tried Safe Mode or Recovery where you have basic functions and DiskUtil -> I cannot even enter.
I have reset the NVRAM etc but no go
I made a Yosemite and Snow Leopard (My original OS) bootable USB Drives and tried booting from them -> it goes to a grey screen and nothing else from the Snow Leo
The Yosemite -> did not even want to boot up. It didnt found it once and then new USB found but not booted.
I believe I havent tried anything else but I am still unable to access my computer.
I do not have the original disks (Cant find them)
Oh, I tried with a Windows installation disk, just to see what might happen -> black screen.
Please, desperately need help. I have a VMWare OSX at the moment and several flash drives I can experiment with.
MacBook Pro (15-inch Early 2011), OS X Yosemite (10.10)