I'm not a big expert on batim so advice is appreciated.
I know that one broken tefira (or even sometimes 2) can be kosher if it's on the side, but the a broken tefira in the corner that ruins the Zavit is Pasul.
This shel yad had a long gid coming out of it. I wasn't sure what it was so had a look and it seemed that it's from the corner tefira underneath.
Perhaps it was the end of the tefirot but it seems to have been badly looped because I pulled lightly at the bottom at it almost pulled out all the way through, so it seems that it's not actually tied to anything. Just pulled through.
The other 3 cornea tefirot (2 on top and 1 on bottom) are a bit loose but they seem to be still connected even if loose.
Does this one bottom corner tefira that isn't really connected posel the tefillin? Must it be opened and re sealed?