It sounds like there's a good chance that it was fine until you
messed with it. I hope you explain that to the Ebay seller too.

People complain if you sell something as-is when you insist that
it works, but then they want you to warrant their mistakes.

carl0s wrote:

oh well. I've gone back to the eBay selling saying it's faulty, but perhaps
as you say it is the battery which has killed it

Wouldn't be so bad if I wasn't doing this for someone else!!