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November 21st, 2025 22:24
U2227DE, success updating firmware from M3T104 to M3T107
As i was working on this Topic 2 nights long. I wann give a hint to everybody with issues. I was, after 2 nights of trying to update my firmware to M3T107, finally able to fix this issue.
Instead of using the standard USB-C to USB-C cable, I used an USB-A to USB-C cable to connect to the Monitor. With this connection i was able to fullfill the firmware update. I used an current Win 11 System.
I hope this will save someone time when trying to upgrade the firmware.
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merylen
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4 Posts
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November 26th, 2025 10:26
I didn't use any Display connection. Just USB-A to USB-C (but not the upstream Port#7). To be honest, i didn't knew about the upstream port. I always used den DP-USB-C-Port #5.
I think i was blind before and may have safed me "some" time if i'would have read the Users Guide right...
Thanks for pointing me out.
DELL-ChrisM2
Community Manager
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November 22nd, 2025 21:12
Good work! From the Windows 11 system, were you connecting via the DP to DP cable or HDMI to HDMI cable to the U2722DE? Then you connected the USB-A to USB-C cable to U2722DE #7 USB-C upstream port? See page 13.