I changed the recent adapter particularly good, I used to think with a suck but still don’t know where the problem is, the last friend to dinner when I happened to mention this problem, a friend just know a little knowledge on electronic help I look only to find the real problem in the above adapter In the past, that may have been used for too long, so it is not so easy to use. As long as a new adapter is changed, there is no problem. So when I sent my friend home, I went to the supermarket to buy a adapter, and I wouldn’t have made it, because I never got the electronic products myself, but it was easy to see the instructions.