Dear users, hello, I'm glad to serve you. According to the information you provided, your card can be used normally on other people's mobile phones, indicating that there is no quality problem with your card. You need to start with your mobile phone. I suggest you go to the after-sales service of your mobile phone and ask the after-sales engineer to help you test and debug your favorite mobile phone, so that you can know the reason and solve it in time and put it into normal use.

China Telecom's 4G is officially commercialized! Enjoy the world of 100 megabits. Tianyi 4G shares a better life. For more exciting content, please pay attention to the online business hall of Anhui Telecom.

Please pay close attention to the latest preferential activities announced by Anhui Telecom's online business hall and the official Weibo.

Please keep asking questions. I wish you a happy life, thank you!