The refub monitor received back in January, doesn't open the factory mode with any key combination. Tried it.
Bought a cheap LG 25" 2560x1080 to keep as second monitor and going to send he 2730z back for repairs or replacemen
I have a f-ton of trouble getting into mine, like a ton of trial and error every time... usually 30 second cooldown before attempting to make it in again, I dread the thought of the power going out and having to go through this whole process again (I've done it maybe 7 - 8 times since owning the screen) it is extremely finicky to try make work if I was in your shoes I would try once more to give it a go just messing around for a bit, because in the end its such a nice monitor/screen!


I already RMA'd my screen once (for firmware update only)
I would do it again if I had a spare lying around!
shame it has these small problems that hold it back from being truly great!
good luck to you!