Get quick access to guides, parts, and answers for your devices
Looks like your cart is empty
A quick note that might save someone trouble: Following these well-crafted instructions, my Mac Pro kept booting to my OS (10.11) instead of the firmware updater. Starting over from a Lion (10.7) startup partition worked, and then I was able to return to 10.11 to do an in-place upgrade to High Sierra from the App Store. The second firmware update from the OS installer ran without issue.
We’re in a similar boat: I’ve got a Radeon HD 5770, purchased from Apple, driving a 30-inch Cinema Display. I got through both BIOS upgrades fine. Perhaps display adapters with non-Apple firmware cause problems.
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
No reputation gained yet.