Predator XB270Hubprz stuck in the factory test mode?

Hello!

One of these beauties very recently for a price cut bought from an official dealer because she had been in for repair at Acer.

It really works very well but it is a big trouble which I assume is a test mode factory than anyone repaired he forgot to turn off. The monitor goes from being full black/red/green/blue/white looping all the time, except if the computer is running, and I don't think it can go in mode 'sleep' either - when I turn it on the screen just instantly appear, no logo or anything (I have another one of these aswell of monitors to compare to).

So my question is... How can I turn off this test mode factory? I'm guessing it's little order 'hidden' I need to press the menu buttons or something like that. I tried my best Googling but found nothing that worked for this monitor in particular

Thanks in advance!

If you google:

xb270hu service

the first 2 results are videos that explain how to enter service mode.

Tags: Acer Predator

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