Asus UX303U not turning on/battery not charging

[alisonb]

It could be that the hardware on the motherboard is not detecting the battery, OR it could be the software that is not detecting the battery, especially if it is not a genuine OEM battery. You could pay for a new motherboard and still have the same problem. It might be time for a new shop, preferably an ASUS factory authorized shop, to check it out.

Thanks. That's a good point - I don't know whether it is a genuine OEM battery or not. I could ask, I suppose.

What about connections? As I said, computer hardware isn't my background, but on general device trouble shooting principles I would also wonder whether the point of failure could be in the connection between the components. Connectors, cabling, etc. Is that something that ever happens?

What is the best way to find a good ASUS factory authorized shop? And is a diagnostic likely to be very expensive? - Edit: searching on the Asus website, it looks like the only authorized repairs in the US are located in either NY or Ga?? That seems rather limited... and definitely problematic for someone located in Ca. Shipping just to get a diagnostic seems extreme and expensive. I'm in the middle of Silicon Valley; one would think there is some option for authorized repair in the area.