Hello guys. Recently bought used MBP Early 2011 15.4inch MC721 (i7 2GHz). Without battery.
While testing it with ASD - i got an error 28 [Mux switching Falled…didn't switch error]. Please see photo attached.
As I understand now, GPU (Radeon HD6490 256Mb) is dead and it's disabled.
But how can I realize how it was disabled? Software or hardware method? I saw that there are some different hardware disabling methods.
Mac came with lion 10.7.4, have successfully upgrade it to high sierra via usb flash drive.
While testing it with ASD - i got an error 28 [Mux switching Falled…didn't switch error]. Please see photo attached.
As I understand now, GPU (Radeon HD6490 256Mb) is dead and it's disabled.
But how can I realize how it was disabled? Software or hardware method? I saw that there are some different hardware disabling methods.
Mac came with lion 10.7.4, have successfully upgrade it to high sierra via usb flash drive.
