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4 Posts
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678
U4021QW, MacBook, USB-C to USB-A
As I could see from the excellent Dell support, simply a stable USB connection is enough.
For my Mac, a USB-C to USB-A was sufficient, even with devices plugged in. And a Thunderbolt 4 cable that came in the box successfully ran the M2T104 <ADMIN NOTE: Broken link has been removed from this post by Dell> macOS firmware.
For Mac user see my connection solution!
MacBook TB4 out port --> U4021QW TB4/USB Type-C to C cable --> U4021QW TB3/DP in port
MacBook USB Type-C out port -> retail USB Type-C to A cable --> U4021QW USB Type-A port
betelgeusecz
11 Posts
0
March 7th, 2022 23:00
What is "USB Type-C to A cable"? I did not get anything like that with the display. Which USB Type-A port on the display did you use?
m4rcw0lf
4 Posts
0
March 8th, 2022 02:00
@betelgeusecz
betelgeusecz
11 Posts
0
March 8th, 2022 03:00
Well, I do not understand? I do have a generic USB-C to USB-A cable but it won't make any difference. M1 Macbook Pro connected via bundled TB4 cable returns "The selected firmware is not for this monitor". See here
betelgeusecz
11 Posts
0
March 8th, 2022 04:00
Unfortunatelly it did not make any difference. Maybe my display is defective.
betelgeusecz
11 Posts
0
March 8th, 2022 04:00
Thanks, I will try if that helps. So basically both USB-C and USB-A on display are connected to you Macbook's USB-C ports?
m4rcw0lf
4 Posts
0
March 8th, 2022 05:00
@betelgeusecz To successfully update with my new MacBook Pro, I used the USB-A port on the monitor (see screenshot) and USB-C on the Macbook Pro. I also used the included Thunderbolt 4 cable. It also says so in the help that two cables must be used. It's just a guess, but the USB cable seems to be used to update the firmware.
betelgeusecz
11 Posts
0
March 8th, 2022 05:00
I also tried with both cables connected without success. I always get "The selected firmware is not for this monitor". I tried with different machine running Windows 10, connected USB-B upstream and displayport but also got the same message.