Please stop the emails and messaging about this, here is the file I modified it with AKOSTERIN's commit it is temporary and does not have SDX65, I only added SDX75 to it to test with it so you should go to bkerlers git page and get the complete file
once edited by him.
I put that in the comments in ...

ALL THE OLD BUILDS ON THIS DEVICE HAVE LOCKED OUT APN, THE NEWEST BUILD HAS IT UNLOCKED BUT THE PROBLEM
IS AFTER YOU FLASH YOUR DEVICE YOU WON'T GET THE NEW BUILD AND MAYBE NOT EVEN IF YOU DONT FLASH IT.
ANYWAY, I MADE AN APN UNLOCK TOOL YESTERDAY WHICH I AM GIVING TO THE COMMUNITY TO USE TO FIX ...