Instead of using your Fun 7 card, to program your Dragon Cam, try using the Cas 3 and Dummy Card.
Download an updated version of Predator380, and unzip/unrar the file.
Connect the Dummy card, the oblong circuit board, using the 9 pin connection to the right hand side of your Cas 3 programmer.
Insert your Dragon Cam, into the Cas 3, and slide in the Dummy Card, with the 2 rows of 4 oblond solder points facing up, and at the front.
Start up your Cas Studio 8.7.1 software, click on the Cam Module tab and the Dragon Cams icon.
Now select the version of the Dragon/T-Rex cam you have.
Click on the little icon, with 3 dots, at the end of the file address bar, navigate to the predator380.dra file and click Open.
Now click Start Update.
To use your Fun 7, to update the Cam.
Download Predator380
Start up your Cas Studio 8.7.1 software, select the Smartcard tab, and the Dragon Card icon.
Insert your Fun 7 card into the Cas 3, chip facing down.
Clcik on the folder icon, at the end of the Firmware address bar, navigate to predator380.dra and write.
Once complete insert into your dragon cam, chip facing upwards, navigate to the dragon cam menu and update.