Hi there,
we have an A1407 which was used until the end of last year with a MacBook Pro M1 without issues. Now I plugged it in to different Macs (MacBook M1, MacBook Intel, iMac) and simply nothing happens. It also does not show up in any of the system information boxes (neither under 'Displays' nor 'Thunderbolt').
Any ideas what the issue could be or if there is any chance to revive the nice display.
Thanks
Felix
Model A1407 is not a 27" LED Cinema Display. It is a 27" Thunderbolt Display.
The 27" LED Cinema Display (model A1316) requires Mini DisplayPort input. You would connect it to a modern Mac using a USB-C (DP) to Mini DisplayPort adapter or cable. You would not use an Apple TB 3-to-2 adapter, because that adapter will not present an unwrapped DisplayPort signal on the TB2 side.
With the Thunderbolt Display (model A1407), it's the other way around. It needs Thunderbolt input. So you would use the Apple TB3-to-2 adapter, in connection with a Thunderbolt 1/2 cable. A USB-C to Mini DisplayPort adapter would not carry a Thunderbolt signal from your computer to the display, and so would not work.
You say that this display was working, but no longer works.
Model A1407 is not a 27" LED Cinema Display. It is a 27" Thunderbolt Display.
The 27" LED Cinema Display (model A1316) requires Mini DisplayPort input. You would connect it to a modern Mac using a USB-C (DP) to Mini DisplayPort adapter or cable. You would not use an Apple TB 3-to-2 adapter, because that adapter will not present an unwrapped DisplayPort signal on the TB2 side.
With the Thunderbolt Display (model A1407), it's the other way around. It needs Thunderbolt input. So you would use the Apple TB3-to-2 adapter, in connection with a Thunderbolt 1/2 cable. A USB-C to Mini DisplayPort adapter would not carry a Thunderbolt signal from your computer to the display, and so would not work.
You say that this display was working, but no longer works.
Hey, thank you very much. It turns out you are right. The official Apple Thunderbolt adapter did the trick!
27" Cinema Display (A1407) does not turn on
