I bought this with the slim travel charger, and both have the same problem. Previous reviewer didn't indicate that they had problems with it, so maybe I'm the problem. I'm a fairly savvy electronics user, and I don't see how I could be screwing up the process of -plug the charger into working DC jack, plug charger into phone-.Yes, as noted in previous review, I slipped the piece of plastic off, the charger plugs all the way into the phone.When the charger is only plugged into the DC jack in my car, the LED shows a steady green, but when the other end is plugged into my phone to charge it, the LED blinks red. I'm assuming that's a power issue.