I purchased my pair of Air S from Amazon back in December and a few days ago, I noticed that the charging case doesn't light up anymore. I can't tell if the case is holding any charge at all. I've tried holding the button inside the case and also keeping it plugged in for a while, but the light hasn't returned.
I'm currently out of the country, so I can't check the booklet to see if there are any instructions for fixing this problem.
Please help. I would like to be able to charge my earphones.