Resolved Force 2. Mac. Book Pro 8,2 with failed AMD GPU to ALWAYS use Intel integrated GPU EFI variable fixIf you dont have time to read my story which also describes some interesting technical approaches just scroll down this thread until a 1. WORKING SOLUTION text. Discrete AMD GPU of my 2. Mac. Book Pro 8,2 has finally failed because of the reasons mentioned here http logicboardmac. It has been working perfectly for 6 years under quite a high load, even tried SETIHOME mining at background So I was confident that my MBP is not affected by bad solder bad soldering quality and didnt want to bring it to Apple for a free repair program partially because couldnt find the time to pause my important software projects, partially because I was afraid that Apple might give me a less reliable logic board or refuse a free repair because of the several unrelated repairs that I did manually by myself earlier to save money changed thermal paste a few times, replaced the internal battery 2 times, replaced a keyboard with broken buttons, etc. But it finally broke down last week laptops screen image became distorted, it refused to boot OS X always freezing half way, and Apple free repair program has already ended I know there are affordable solutions like 5. BGA resoldering at unofficial local repair shop and that its possible to get a new replacement HD 6. M chip from Ali. Express for 3. DC 2. 0. 02. 8 2. BGA Chipset3. 27. DC 2. 01. 5 New 2. Resolved Force 2011 MacBook Pro 8,2 with failed AMD GPU to ALWAYS use Intel integrated GPU EFI variable fix Discussion in MacBook Pro started by AppleMacFinder. Amazon. com Apple 15 MacBook Pro, Retina, Touch Bar, 2. GHz Intel Core i7 Quad Core, 16GB RAM, 512GB SSD, Space Gray, MPTT2LLA Newest Version Computers Accessories. Word on the street is the coconut oil is bad for you. Once thought to be a fat burning fat that was good to incorporate into your diet, now the advice is You. Questions or comments Feel free to contact me at collinmistrgmail. Please take a look at the FAQ located at the bottom of this page as well. Efi 2011 2012 remove firmware password macbook air or pro 2017 bios retina 15 13 reset hack icloud hardware 2015 2014 2013. Cfhc.png' alt='Macbook Pro Fails To Boot After Update Access' title='Macbook Pro Fails To Boot After Update Access' />Graphic Chipset3. But I dont like investing money to the old computers, so I have thought what if there is some hack to force MBP to use integrated graphics ALL THE TIME, even while booting And then started to explore the possible solutions. First of all, it is possible to successfully boot a MBP to OS X while still using the failed GPU, after you remove the AMD drivers by booting in command line mode CMDS and entering these commands 1fsck fyto check a disk2mount uw mount a root filesystem with readwrite permissions3sudo mkdir AMDKextsmake a directory to store the AMD drivers in case youll need them in future4sudo mv SystemLibraryExtensionsAMD. AMDKextsmove the AMD drivers5 sudo rm rf SystemLibraryCachescom. AMD drivers cache6 sudo mkdir SystemLibraryCachescom. OS X will be dumb and will not recreate this directory, I am creating it for OS X7sudo touch SystemLibraryExtensionsto update the timestamps so that new driver caches without AMD drivers will be definitely rebuilt8sudo umount umount a partition to guarantee that your changes are flushed to it9 sudo reboot. The degree of your inconvenience while doing these steps strongly depends on how heavily a screens image is distorted in your case. In my case it was even more difficult because the OS X partition became a read only partition because of too many emergency shutdowns I did while desperately trying to boot OS X with a failed GPU so I had to remove a hard drive from Mac. Book Pro and using a USB to SATA 2. HDD attached it to a computer with Linux, then followed these instructions https superuser. YOURNUMBER devsdb. HFS partition to mnt directory in read write mode. Then I performed these 1 7 steps you see above, and also repaired a filesystem by running sudo fsck. MBP. This gave me a MBP which could boot to OS X although STILL using a broken AMD GPU so it screens image is very distorted could browse the Internet but quite inconvenient to read a text, Launchpad is super laggy, and you cant switch to Integrated GPU using gfx. Card. Status because without AMD drivers which we had to remove to successfully boot to OS X Macbook Pro thinks its internal screen is External Display and gfx. Card. Status tells it is impossible to switch because External Display is using AMD GPU. Somewhere I found a suggestion that it is possible to rebuild a gfx. Card. Status from the source code https github. Card. Status with removed or commented out 1. Card. StatusClassesGSProcess. CGDirect. Display. ID displays8 CGDisplay. Count display. Count 0 if CGGet. Online. Display. List8, displays, display. Count no. Err for int i 0 i lt display. Count i if CGDisplay. Is. Builtindisplayslist add. Object NSDictionary dictionary. With. Objects. And. Keys StrExternal Display, k. Task. Item. Name, k. Task. Item. PID, nil So I rebuilt a gfx. Card. Status using the instructions from the last reply of this issue https github. Card. Statusissues2. Mac. OSX1. 0. 1. 1. Mac. OSX SDKsreleases unpack and copy it to XCodes ApplicationsXcode. ContentsDeveloperPlatformsMac. OSX. platformDeveloperSDKsMac. OSX1. 0. 1. 1. sdk because of the Apples stupidity the latest XCode for El Capitan does not include SDK for El Capitan However, it still didnt work gfx. Card. Status only pretended that it has switched to Integrated GPU, while in reality OS X did not let it switch Even after I edited. Card. StatusClassesGSGPU. Nuke it from orbit switching option, it still couldnt switch. Then I discovered this interesting repository https github. Card. Status but also has the Login Hooks installhooks. Sadly it didnt work for me. However, there is a very interesting gpu switch text file right at the root of this repository, which describes the EFI variables After studying it and also reading this issues comments https github. I became confident to try this solution, but found out that my Mac. Book Pro 2. 01. 1 8,2 with OS X El Capitan 1. VERY problematic situation 1 r. EFInd is not installed, and to install it must disable SIP protection. Microsoft Word Suchen Und Ersetzen Platzhalter Word. But I cannot boot to Recovery mode CommandOptionR or to OS X Installation DVDUSB hold Option, to disable SIP, because they freeze while booting I removed AMD kexts from my system, of course these recovery tools are using AMD kexts integrated to their design. Also cannot use Rootfool hack https github. SIP during runtime, because it works only at OS X version older than 1. Tried overheating my Macbook Pro on purpose forcing CPU usage to 1. Integrated graphics will be enabled during the boot time making it possible to boot to Recovery. But because of the wonderful high end thermal paste I have applied not so long ago cannot overheat it even after waiting for a long time At this point I thought that could either a remove AMD kexts from Installation media, or b to connect MBPs hard drive to a Linux machine again and run a bunch of chmods to remove the SIP flags from the directories mentioned here http apple. EFInd to HFS partition directly from a Linux machine with root rights because it will bypass SIP but have not explored these options, although some of them might have worked. Wanted to boot a Linux Live. CD to edit the EFI variables from there, but no matter what I did tried booting straight without GRUB option modifications, tried editing GRUB boot options with e key to add nomodeset remove quiet splash or both in every combination, or like suggested in this article https wiki. Mac. Book. Pro. 8,18,28,32. FnF1. 0 or ShiftCtrlFnF1. Linux boot process always failed at different boot stages, no matter what popular user friendly Linux distribution or what version of it I am trying tried many releases of Ubuntu Lubuntu Fedora, even the old AMD6. Mac and Alternate AMD6. Mac images, but they always failed either at the very beginning of boot process black screen, or a black screen with a blinking or stuck character at the left upper corner or failed at the very end of it right before it is supposed to show a graphical desktop environment. Later, totoe8. 4wrote that he was able to boot Ubuntu in graphical mode using the following setup for GRUB To disable the AMD graphics card I added the following lines after set gfxpayloadkeepoutb 0x. Next I added the following after quiet splashi.