[David Siegfried]

Thanks, I had seen page that in my search for information but still no info on the pin assignment. I have a Sony power supply but it’s 4 pins. Also have some NP-23 batteries.
I tried a few combinations but so far no luck.

[David Siegfried]

I have not, because the firmware update offers me nothing I want.
As long as you ordered the cable, and this is what Panasonic is saying, then you’re right to go by what they say and not take any chances.
At least that way in the highly unlikely event that there’s a problem doing the update, you haven’t violate your warranty in any way.

Best of luck.

[David Siegfried]

“This Update can not be done with battery”

If it literally CAN NOT be done with battery, then it won’t work. If it’s not recommended, that’s another story.

Usually firmware updates can be performed as long as the system sees a fully charged battery. The only reason that A/C power is required instead of battery is that if the battery happened to run out while in the middle of the update, your camera would be bricked.

Of course you could just as easily have a power outage in the middle of your update and that too would brick your camera. It’s funny, because with the GH2 they specifically recommending using a full battery and NOT A/C power, for that very reason. With a full battery, your chance of power interruption are actually much less than with A/C power.

So you could try it with a fully charged battery and see if it will work. If not, then “can not” really means “can not”.