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U2520D, seems not sharp and not so bright anymore
I noticed that my U2520D seems a bit less bright and less sharp then before. I have made adjustments through the monitor OSD as well as through the connected iMac. I am wondering whether it needs a firmware upgrade? It currently has M3B101. The U2520D is only two years old. I found the instructions and tried to do the firmware upgrade and it just hung and didn't achieve anything as far as I can tell. Help?
DELL-Chris M
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Posted January 17th, 2022 11:00
Click the blue DELL-Cares username. Their profile page will appear. On the right click, "Send this user a private message". They will need the private U2520D Service Tag and 20 digit serial number. Check the rear label.
You should open the U2520D Menu- Others. Then run Factory Reset.
The only firmware update I see for the U2520D was the macOS M3B104. When you downloaded (Dell_U2520D_FWUpdate_M3B104_macOS.zip) and unzipped it, there should have been a PDF walkthrough on how to install the firmware update. Did you read through that PDF?
DELL-Chris M (old account)
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