I always hook my phone to wall charger when 15% message pops up. Normal action is : 1) pop up disappears 2) lightning bolt appears in battery icon 3) icon goes from red to green in steps, (about 5 second cycle)showing it is charging. For the last few days, when I plug in the charger, I get action 1) above, but not 2) or 3). The icon just remains red. If I unplug it, the pop up immediately appears, if I reconnect the charger, I get the same thing. If I repeat 3-10 times, the lightning bolt and charging cycle of the battery icon works. Anyone else seen this? I tend to suspect the micro usb cable or the connector on the phone(hope not). Obviously, the phone knows a cable is being connected but doesn't show it is charging. Last thing I want to do is allow battery to die. Any advice is appreciated.