About 2 hours ago I received original nokia battery in mail bl-5j, with holograms with dots etc . inserted into my phone=not charging. does exactly what I described in first post. yellow light blinking 5 seconds, black screen, and repeat. Its not about 5$ expense for the wall charger, its about inconvenience and lack of piece of mind. I have to basically worry about battery levels throughout my day out of fear of not being able to charge it. It's Nokias fault, miscalculation for the power output needed to charge battery through the mini usb. end of story. (Im not even talking about computer usb to nokia mini usb, im talking a bout power outlet to nokia usb)