1. Under the desktop, please click the menu button-Global Search, enter the network assistant, click the traffic ranking, and click the batch networking control to see if all the options under wifi and traffic 2G/3G are checked. If not, please check it.
2: Still no good. Please go to System Settings-Applications-Applications-Clear Data, or uninstall the software. After booting, go to the application supermarket to download and install the software, and try to recover.