News via http://www.xbox-scene.com/xbox1data/...EVtpWolnig.php

Zouzzz released DevLC Patcher:
[QUOTE]
This utility allows you to recognize your DLC to your retail Dev / Test Kit, (not delock DLC Demo to Full).
To use, you must file keys.txt pasted into the folder containing the. Exe

* v1.1: fix bug in Patch Button when DevLC boot
* v1.0 : First edition

Official Site/Download: hb-released.com