Unsolved
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7 Posts
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279
October 25th, 2025 18:42
U4025QW, cannot update to firmware M3T105 via macOS Tahoe 26
I've tried this from two 2024 Macbook Pro M4s running Tahoe 26.0.1. One is using M4 Pro chips, the other M4 Max. The firmware utility says the Model No and Current Firmware are 'Not detected' and the error says 'The selected firmware is not for this monitor'. Can anyone advise how to make this work?
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DELL-ChrisM2
Community Manager
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501 Posts
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October 26th, 2025 00:16
We have notified the Displays team of these threads. sirgromit39f9dc had same issue here =
UPDATE: I was able to update the firmware using my old 2017 MBP (Intel) which was running macOS Ventura 13.7.8 but not with my 2024 MBP (M4) which is running macOS Tahoe 26.0.1.
If you have a Windows OS PC, connect the U4025QW to it and try running the U4025QW Windows OS M3T105 firmware update.
jgalvin
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October 26th, 2025 00:22
If i had a windows PC, i would have done that before looking for help. But, i dont.
DELL-ChrisM2
Community Manager
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501 Posts
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October 26th, 2025 00:31
@jgalvin No offense intended, but had to ask.
user_806c2f
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2 Posts
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October 28th, 2025 18:40
@DELL-ChrisM2
I had the same problem. I was able to use a Windows 10 laptop to upgrade the firmware. The mac I originally tried to update the firmware with is a MBP 2023 running Tahoe 26.0.1 with an Apple M2 Max chip in case it's helpful.
(edited)
jgalvin
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October 29th, 2025 13:37
I tried it on an Macbook Air with the M1 chip and it didn't work.
DELL-ChrisM2
Community Manager
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501 Posts
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October 29th, 2025 13:53
@jgalvin What macOS was on it?
jgalvin
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October 29th, 2025 19:30
It's running Mac OS Tahoe 26.0.1
mgilge
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November 8th, 2025 01:25
Doesn't work for me either M2 Max running Tahoe 26.0.1 also
fisz
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5 Posts
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November 10th, 2025 11:12
@DELL-ChrisM2 Is there any timeline when you plan to fix Mac OS Tahoe support? Is Windows laptop the only available option to do the firmware upgrade currently?
DELL-ChrisM2
Community Manager
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501 Posts
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November 10th, 2025 13:06
Is there any timeline when you plan to fix Mac OS Tahoe support?
* No. All we Forum Liaisons can do is report the issue, threads, number of users. etc. When we receive replies from the platform team, we post the applicable communications.
Is Windows laptop the only available option to do the firmware upgrade currently?
* Based on other user reports, yes.
mgilge
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3 Posts
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November 10th, 2025 16:04
It doesn't work on my windows 11 PC either it locks it up just trying it. Really baaaad software hope the monitor is better than this long term
fisz
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November 13th, 2025 20:56
@DELL-ChrisM2 Thanks for the answers.
Is the issue reported? What is the status? The firmware I can't install suppose to fix several issues which are critical in my opinion (random monitor shut downs on MacOS).
Alice74
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1 Message
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November 13th, 2025 21:36
Same here! MacBook Pro M4 Pro Tahoe 26.1 - I just change from the U4021QW to the new one. For a monitor priced at this range I would expect more focus and prioritization from DELL :-(
The customer and user experience is very low at this point. I really hope there will be a SW fix as I to not have or like any Windows solution nor downgrade my Mac
ppope56
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November 13th, 2025 22:39
@user_806c2f Good idea. Of course if you have a windows computer.
ppope56
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November 13th, 2025 23:57
@ppope56 I have the new Mac Studio, so I just tried updating the firmware using my Windows laptop and it worked perfectly. Just plugged a thunderbolt into the laptops port and to my U4025QW thunderbolt port and downloaded the windows updated file. Shows updated to M3T105. I plugged the monitor back into my Mac Studio and no glitches or issues. I just got the monitor today....you would think they would come up to date with the latest firmware before going out the door.
(edited)