Had an iPhone 6 for about 18 months, but ever since I got it, it was very temperamental about it's charging lead. Sometimes it would, sometimes it wouldn't. Well I suspect that the original Apple lead had probably inadvertently disappeared during one of our regular 'plagues by grandchild' as what I was left with was a bit manky, so I put it down to that and ordered another off eBay. It worked one way up and not the other! Well after several non genuine leads eventually I managed to get a genuine one, and it worked. But then the problem started coming back
I did the obvious, like blowing the socket out with compressed air, but to no avail. Well today it got so bad nothing I did would let it make connection - so this means not only can it not be charged, none of the information in the phone can be downloaded or backed up
Desperate times : trip to the shop called for, but I'm very pressed for time in the next few days by which time it'll be flat
A few YouTube videos later I decided to get a powerful light and very powerful lens on the socket, and hey - what's that 'stuff' wedged way down the bottom
Careful poking about with a very slenderly tapered wooden cocktail stick dislodged it and moved it about so now the airline could clear it.
Quick test, and every lead I've previously had problems with now works
I reckon that that crud had been in there from the start - anyway now I've been able to take multiple back ups and fully charge it
Well I use the iPhone to take pictures, so of course there aren't any