I have a GH2 with a hack I didn't install. My problem is I have a DMW-DCC8 battery coupler and it will not work in the camera. Batteries will but not the coupler. I am feeding it with a larger battery but still 8.4v lithium. The screen that pops up is this battery will not work. How do I solve this. Can I back flash to see if that will allow DCC8 to work then go back to the hack? Is there a setting to change in the firmware?