It never stopped working on the Dragon Cam, you just have to manually enter the Decimal keys.
First go into the Cams menu, Settings and turn N2 AU OFF, then go back and enter Debug, enter OhlAladin and Digi TV.
Then select the key that needs updating.
You will notice the keys are split into four parts
Key 00-0
Key 00-1
Key 01-0
Key 01-1
If key 00 is the latest update just enter key 00-0 and enter the first 8 sets of Decimal key (3 numbers), then enter key 00-1 and enter the last 8 sets of decimal keys, it's that easy.