Unicom's 3G card, Samsung's QQ, WeChat and Sina can't log in, showing that c7002, Baidu and Post Bar are all normal. Ask for an answer, no

According to your description, I suggest you: 1. After turning on the machine again, try to turn it on.

2. Check the network connection. If you have used a data traffic connection before, please try to log in to WALN.

3. Uninstall the reinstall attempt

4. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore factory settings (enter phone settings-reset/privacy/private-restore factory settings).

If the problem cannot be solved after returning to the factory, please send the mobile phone to the nearest Samsung service center for testing and further processing.

Please visit the address and contact information of the service center:

. Samsung . com/support/service locations . ASP

If you have any comments, suggestions and comments, please click: support.samsung.com.cn/survey.