* CPU: 2GHz Intel Core i7
* RAM: 8GB 1333MHZ DDR3
* Serial: xxxxx
* HD: Ei kovalevyä
* Sijainti: Helsinki
* Maksutapa: MP, käteinen, tilisiirto
* Toimitustapa: Nouto
ja soveltuvin osin
* Tuotteen kunto: AMD Radeon GPU rikki, Intel HD GPU toimi. Ulkoisesti hyvässä kunnossa.
* Akun kunto: huono
* Hintapyyntö: 70eur->50eur
Olen itse saanut toimimaan disabloimalla dedikoitu GPU:n jolloin toimii Intel GPU:lla seuraavilla ohjeilla.
Speks: https://everymac.com/systems/apple/macb ... specs.html
Koodi: Valitse kaikki
Reset SMC
Shutdown, unplug everything except power and hold
leftShift + Ctrl + Option + Power
I held for 5 seconds, but holding just for an instant should work
Reset NVRAM: Power up and hold
Command + Option + p + r
Until you hear the startup chime two times.
Shutdown computer
Power up and boot into Single User Recovery by holding
if you are on high sierra 10.13.6+ you might need to use Command + r instead
Command + r + s
Disable SIP (This takes a bit to complete so wait for it)
$ csrutil disable
Failed to modify system integrity configuration. This tool needs to be executed from the recovery os
Disable Discrete GPU on boot by running
$ nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00
Enable verbose boot mode (This will show text everytime you boot up, shutdown or restart your mac)
$ nvram boot-args="-v"
Reboot
$ reboot
Boot into Single User-mode by holding
Command + s
It might look as if it hanged, but press enter and you should see the shell (root#)
Mount root partition writeable
$ /sbin/mount -uw /
Make a kext-backup directory
$ mkdir -p /System/Library/Extensions-off
Operation not permitted….
Move ONLY ONE offending kext out of the way
$ mv /System/Library/Extensions/AMDRadeonX3000.kext /System/Library/Extensions-off/
Inform the system to update its kextcache:
$ touch /System/Library/Extensions/
Reboot
$ reboot