Firmware update, i can't figure this out. I was able to update the previous firmware using a pc now on my iMac 5k i can't get this done. i downloaded 1.2.0.17. Insert a sd card into the iMac, open it to a DCIM folder. Click & drag the firmware update to the DCIM folder. It adds it, downloaded now i stick it in the AC! I don't have the OG sd card handy. These 3 been working with the camera so shouldn't be an issue. Freshly formatted in the I1. Nothing happens it never starts to download. Lights stay blinking green. Insert the sd into RC same thing it never starts the download. 64, 32sd cards, both record video i have a 4 gb phantom card also none work for the upgrade. What am I doing wrong?