- May 12, 2011
- OSX 10.10.3
- Intel Core i5 5200U
- Intel HD 5500 and Geforce 820M
- Classic Mac
- Mobile Phone
It seems i have the same problem with you. Black-out occurs in the middle of the boot. At the time of the black screen, i can Print screen by combo key "Shift + Alt + 4" and Shutdown by "Ctrl + Power button" then Enter. Although, i can't see anything but can take screen shot and take a look:Real story like a lie
1. my Thinkpad Carbon X1 Gen3 is, BIOS is locked
2.Dedicated Video Memory is, is 0MB -> DVMT pre-allocated: 32MB?
3. [GUIDE] Intel HD Graphics 5500 , it has STEP 2.2.
(However, it seems that it has not been set correctly)
What you need
2.LED access lamp marked with WiFi USB dongle
3. patience (few minutes)
Part # 0
First, [Guide] 2015 X1 Carbon Yosemite is all of the BASE!
Part # 1 -> to Part 14, 0x16160002 of ig-platform-id of You set /EFI/Clover/config.plist that do not set!
Once you have verified that you can start at the /EFI/Clover/config.plist,
to copy and /EFI/Clover/config.plist the /EFI/Clover/config5500.plist.
To /EFI/Clover/config5500.plist, it sets the 0x16160002 of ig-platform-id.
CLOVER of Boot at, select the option,
is set to returnCode:
Started in "Boot Mac OS X from ***"
Part # 1
Status bar is displayed for a moment to the screen to black out
But, it will be sure that the WiFi USB dongle with a LED access lamp rather than a system hang-up is flashing
Wait for 2 minutes
After flashing WiFi USB dongle with a LED access lamp it is calm,
[Ctrl]+[Win Key]+[Insert]? [Command] + [Option] + [Insert]
[Insert] is, it seems [Eject]???
My press slowly. You can easily find useless, still waiting.
In my environment, this in, will start almost 95%.
View attachment 135901View attachment 135902View attachment 135903
And i think the BIOS is locked so, it is that the rewriting from the outside is prohibited. But i don't have Dongle USB Wifi.
Any idea to fix this error?
I posted my error in here: