Addresses a phenomenon that occurs when charging the camcorder with the battery pack attached, in which the [CHG] lamp blinks seven times (alternating between being ON or OFF for one second), after which the camcorder cannot be charged. Other than correcting the described phenomenon, this update does not change the product performance.

The firmware can be downloaded from the below link.

http://web.canon.jp/imaging/dcp/firm-e/hfm31/index.html