Has anyone managed to update the firmware on the U2722DE to the latest M3T104 version released in September? I wasted an hour this evening and am convinced the update is faulty as it gets almost halfway through then says flash erase error. To add insult to injury I now get an error every time my monitor starts saying “firmware update failed”. 

I disconnect all cables apart from power and USB upstream. Found two different Windows 10 laptops to try to update but with the same error. 

I tried unplugging the monitor for a few minutes, turning back on. Turning on and off the laptop. I even found an ancient Dell brick (very solid and heavy) from years ago and that was the same end result (so no one can say it only works with Dell hardware). 

Any help or suggestions very much appreciated.