Help Me Please

[Jpbroad1970]

I wonder if it could be an immobiliser issue could be well worth trying another key.

Also the battery isn't used to run the car once it's started it should continue to run until stalled, or turned off, the battery is only used to power lights radio etc.

I'm not surprised the software update didn't work & TBH I don't see why Vauxhall & other mechanics think it will at the end of the day the software has been fine until now so that should lead you to look into things a lot more maybe I'm just old school in my approach to things but I think nowadays we aren't getting any proper mechanics just fitters that relay on what a PC tells them rather than questioning why.

I agree, there seems to be something more than software. The key is a good place to start also look at what powers you have going to components. It could be a long process but unfortunately it is a path you will need to take.but as with any job people can only guess for you as they don't have access to your car.