OP-1 battery won't charge, one more...

After a month or so of non-use, I’m unable to turn my OP-1 on.

I’ve tried the various fixes around charging, update firmware but no joy and am trying to get my head around whether it’s likely the connector-board, battery, or both…

When I connect my OP-1 via USB to the computer or charger, I see absolutely no charge-indicators illuminate; does this suggest that it’s more likely a connector-board fault? I wonder if those with battery issues still saw charge indication light up, but then their units simply wouldn’t hold charge?

Any insight greatly appreciated, thx!

Did you charge it for a long time without disconnecting it, lets say 10-24 hours? Sometimes this works…