Updating Harman/Kardon AVR255/x55/x45
I tried updating the firmware of my Harman/Kardon AVR255 with Windows 7 Ultimate x64, but it always failed at the video subsystem part with the message: “AVR didn’t respond properly. Video subsystem upgrade failed.” Then I tried using Windows XP Continue reading Updating Harman/Kardon AVR255/x55/x45