Htc has almost no after-sales service in China. You can check Baidu map to see if there is a special repairer there. Or you can buy accessories on Taobao and get them to the local parallel mobile phone mall for repair. Just pay a manual fee, probably around 50 yuan. Don't pay more. If you are brave, you can find a tutorial online or take the exam yourself. I just took it myself, and I changed the external screen and keyboard cable, which adds up to about 70 yuan.