Hello,
my mac got this issue 1 year ago it was on sierra and the tutorial solve the issue. after them last week i did hug mistake i did upgrade to high sierra so i got the same issue and i solved it by this tutorial
Follow the MikeyN Guide - page 35 - #875 - to move the AMDRadeonX3000.kext from the /System/Library/Extensions directory and do not freeze Macbook Pro (at 75% progress bar or "IOConsoleUsers: gIOScreenLockState 3" message).
Rename old AMDRadeonX3000.kext and move new AMDRadeonX3000.kext after update - Page 57 - #1425
now its fixed and my mac working fine. but i have a new issue
there is a black screen with some text like terminal showing up before loginin and after shut down my mac
here is the video i record for the screen.
the black screen before the gray logo show >>
the black screen after i shutdown my mac >>
so please i need help to fix or hide those screens.
thanks a lot guys without you my mac would not been working now
my mac got this issue 1 year ago it was on sierra and the tutorial solve the issue. after them last week i did hug mistake i did upgrade to high sierra so i got the same issue and i solved it by this tutorial
Follow the MikeyN Guide - page 35 - #875 - to move the AMDRadeonX3000.kext from the /System/Library/Extensions directory and do not freeze Macbook Pro (at 75% progress bar or "IOConsoleUsers: gIOScreenLockState 3" message).
Rename old AMDRadeonX3000.kext and move new AMDRadeonX3000.kext after update - Page 57 - #1425
now its fixed and my mac working fine. but i have a new issue
there is a black screen with some text like terminal showing up before loginin and after shut down my mac
here is the video i record for the screen.
the black screen before the gray logo show >>
the black screen after i shutdown my mac >>
so please i need help to fix or hide those screens.
thanks a lot guys without you my mac would not been working now