How to unlock number lock in android 6.0
enter in the numbers of in the same order and location as where the dots would have been in the pattern unlock EG

...   123
... = 456
...   789


so if you pattern was a square then you number pin would be 13269874 that would be a square starting at the top left corner. if this dose not work for you then you can always flash stock img with cmd and restore form back up