Rick, thanks for taking the time to get back to me and sharing your ideas - i'll definitely look for a powerbank with better output.Have a lovely day and thanks again.
I'm facing a similar issue as well - I've updated to firmware 1.0.5.1, and I'd been using a power bank in video mode ever since i got the camera.Suddenly, post-update, the PD sign doesn't come on in video/photo mode when the power bank's connected (y...