Firstly hi and hope all is well... My device started randomly turning off the other day and sometimes wouldn't turn on for ages. Then boom, it starts. So whilst I was getting these weird episodes, I decided to update device and reset it. Now the blimmin' thing will not turn on properly. All I am getting is the TOMTOM name for a couple of seconds and then it goes dead. I have had it on charge for hours in my house. I've tried various cables (including the original one). Unable to follow troubleshooting guide as the thing won't even power up. I'm at a dead end with it now. I'm kind of thinking the battery is shot. Any ideas on what to do? Thanks.