The reason for this may be that the application fails and cannot be opened or run normally.In addition, it is also possible that you set the mobile network or wireless network permission of an application to disable use, which causes the application to fail to connect to the network normally.
1. First, determine whether your mobile phone is connected to other WiFi signals to access the Internet normally, so as to determine whether it is the problem of the mobile phone itself. If it is the problem of the mobile phone itself, it needs to be repaired by a professional maintenance agency;
2. If other mobile phones have the same problem with WiFi connection, it may be that the broadband network has failed. You can log in to the WiFi router to check whether the WiFi parameter configuration is correct and whether the broadband connection status in the WiFi router is normal. If so, you need to report to the broadband operator for broadband line maintenance;
3. Check whether the WiFi router has set MAC address filtering and other policies to restrict your mobile phone from accessing the Internet.
Other APPs can be used. Only Alipay shows that the connection fails. Make sure your account and password are filled correctly. If there is no problem or the display fails, uninstall your Alipay first and then reinstall it. There should be no more problems.
Recently, the Huawei mobile phones used by a small circle always remind you that the system needs to be upgraded. I chose to ignore the delayed upgrade because I was worried that the system would slow down after the upgrade. However, the Android mobile phone does not give you a choice. If you suspend the upgrade, it will keep reminding you that you need to upgrade at least once a day. So I can't help upgrading today. As a result, I caught up with the major version upgrade of the system a few days ago, and unexpectedly upgraded to the latest version of Android 9.0, which is often referred to as Android 9. The upgrade took about half an hour, which can be said to be a disruptive major change. The experience after upgrading Android 9 is as follows: 1. The system response is slightly slow, especially after the first startup after the upgrade, I got used to it later; 2. The display interface of the mobile phone is more exquisite, and the words displayed on the mobile phone are more exquisite and clear; 3. This upgrade is the Huawei EMUI9.0 system developed by Huawei based on Android 9.0 system. It is suggested that after the upgrade, many intelligent designs will be added in smart life, mobile office, equipment exchange and data security. So far, no significant changes have been found in the small circle, so it will not be used. However, after upgrading my mobile phone to the latest Android 9.0, I still found some problems. Some APP installed on my original mobile phone prompted me with an error. The content of the prompt was: "This app is designed for the old version of Android, and may not work properly. Please try to check the update or contact the developer." See the screenshot below. The mobile phone is upgraded to Android 9, and some applications report errors This picture is an error when I used to use a commonly used "Zoom in Picture" APP. After clicking OK, I found that the APP can still be used normally. However, the following mobile office app of our enterprise is even more troublesome. When it was launched, it first prompted a similar alarm of "specially built for the old version". After clicking OK, it was found that my app had a flashback phenomenon, that is, it could not be used normally. The mobile phone is upgraded to Android 9, and the enterprise mobile office cannot be used It seems that the version of Android 9 upgrade is a bit broad, and some downward system compatibility problems have even occurred. Later, I consulted the enterprise information management personnel, feedback the current problems, and got a very helpless answer, saying that our company's mobile office app platform is developed based on older Android 7 or below,This time, it is useless to find the app developer, but we still need to find the mobile platform manufacturer to upgrade and repair the problem. In addition, the administrator also told me that according to the feedback of the mobile platform manufacturer, many companies have problems with their mobile office systems, and we need to wait patiently for the time to repair and upgrade. After listening to this, I don't have anything to say, but I feel that this Android upgrade is a bit big. Applications such as WeChat and Hand100 will certainly not have problems. Even if they do, they will be updated in a timely manner. It is just because of some small applications and old versions of enterprise mobile office applications. Look at the screen capture of Huawei's prompt before the start of the upgrade. Tips for upgrading Huawei mobile phones to Android 9 According to the update precautions before Huawei mobile phones upgrade Android 9, "because some third-party applications are incompatible with Android 9.0, third-party applications may not work properly after the update. It is recommended that you try to update the application to the latest version in the Huawei application market." The solution to the problem seems feasible,But what if some applications are not updated at all? In fact, Xiao Quan'er hasn't found a solution to the downward compatibility problem of mobile phones upgraded to Android 9.0, but at least we can remind you through our own experience that most of the applications are still available, and I have been using them for several hours after the upgrade, and found that Android 9 does a good job in image and interface,Overall, it is acceptable. Have all your mobile phones been upgraded to Android 9?What's the experience after upgrading?Welcome to the webmaster's life circle for discussion and comment.
