I checked Dell’s drivers & downloads page for the U2414H, but there’s listed—only drivers and manuals.
"I need to update the firmware on my Dell U2414H." Dell U2414h Firmware
No. Dell does not offer downloadable or user-installable firmware files for the U2414H. Unlike newer monitors, this model does not have a user-updatable firmware mechanism via USB or DisplayPort. I checked Dell’s drivers & downloads page for
Hey everyone, I’ve got three Dell U2414H monitors in a multi-monitor setup. I’m trying to solve a DisplayPort daisy-chaining issue (MST) where the 2nd monitor goes black randomly. Dell U2414h Firmware