Over the last six months I noticed my phone getting harder to charge.
The cable would only stay in at the prefect angle, and if it fell out
I would wake up in the morning to a phone that wasn't charged. I was
finding it more and more frustrating, and I was worried that soon I
wouldn't be able to charge my phone at all. Replacing the cable
helped a little, but not much. As I was looking online at replacement
micro usb ports , however, I saw a suggestion
that I clean the port. Using a toothpick (non-conductive, but I took
out the battery anyway to be safe) I removed an incredible amount of
fuzz and lint from the port. Now the cable fits well, and I'm way
more relaxed about charging the phone.
 Remarkably cheap, assuming you're up for installing them yourself
and risking breaking your phone.
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