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firmware programming mode

  1. maverick28

    Is it possible to update or tweak the USB_A-to-HDMI adapter firmware to make it compatible with a Mac?

    I bought a USB 3.0 (USB-A) to HDMI adapter but was too late to notice it wouldn't work with Mac - Windows only; as such my Mac simply won't recognize my Sony TV. Unfortunately a return is not possible due to the damaged package, so I thought since there's the Device Firmware Update mode which is...
  2. markapplelover

    iMac 8,1 Catalina Patcher, Firmware Programming Mode

    So I am trying to install Catalina Patcher on my mom's iMac early 2008 8,1 and to boot off of APFS (which I want for the software updates), I need to patch firmware. I see two options: Under the Mojave Pacther page there is a mention of a firmware package but not sure if it is needed for my...