Question Resetting monitor in the service menu ?

Unfortunately that link is not really helpful - at least for the time being.....

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It is not okay if you did not do so intentionally and without some reason for even thinking about doing so.

Update your post to: 1) explain the original problem(s), and 2) what led events led to the unintended reset?

That said, update your post to include full system hardware specs and OS information.

Make & model monitor?