[Q] How to put Note 2 in stock mode topic

Hi,

Here is my sad story. Long time ago I've upgraded to official 4.3 rom as it became available by Samsung, didn't like it and downgraded to official 4.1.1 rom. As I didn't know about knox at that time I've got nice knox warranty void flag:( I know that there is no way to remove it. But the question is about flash counter. Is there any way to reset it, put device into official mode and have official ota updates? Is there any tutorial about this? Thanks.