I am unable to charge my phone most of the times.
When I connect my phone to the USB cable which is in turn connected to the computer or charger, most of the times (about 90 percent), I am unable to see the charging sign and battery discharges. However only in some special cases, in particular when I plug in the cable in the computer just after i press the power button, that too, selectively, the phone is able to charge.
Also : After this problem, phone only connects in AC charging mode and not in USB mode.
I brought this phone from another country so service centers here refuse to accept it. I just want to charge the phone as of now.
EDIT : Today I found a new problem. After charging it to around fifty percent with an old computer, I just plugged it into the wall charger. It did show just a sign of initialization but did not continue. When I switched on the phone, the battery was reduced to 10 percent