The system is upgraded, and the installation package verification failed

Two: An error occurs when you install the software prompting that the application is not installed or resolving the usual possible causes of the package

1. Your app installation package does not support the latest version of Android system, how is the latest version updated by reliable software** in the market. 2. The application installation package, indicating that the installer has been tampered with.

1. When the mobile phone installs the software, it prompts that the installation package is damaged and cannot be installed due to many reasons, one is the problem of the installation package itself, the second is due to the network signal, the mobile phone has a packet loss situation when the software is **, and the third is caused by the mobile phone system, which still needs to be understood for these points.

2. If it is caused by the problem of the software installation package itself, the user can find the installation package of the software for deletion operation, and find the original file to delete, and then re-install it, or turn off the mobile phone after deletion and restart it, and then re-install the mobile phone.

3. If the installation package is damaged due to network reasons and cannot be installed, the user can delete the installation package, find a place with a better network signal and try again, and if it is a mobile phone system problem, you can turn off the mobile phone and restart it again, if the above methods can not solve the problem, you need to find a professional to detect.

4. When installing the software, it is also a headache to not be able to install normally, if the user encounters this situation, don't panic, first restart the phone, it can generally be solved, if it still prompts that it cannot be installed, it may also be caused by the mobile phone memory, you can clean up the mobile phone memory, or uninstall some infrequently used software in the mobile phone, so you can.

5. Or check whether the unknown ** of the mobile phone is turned on, if the mobile phone is closed unknown**, it is impossible to install software other than the mobile phone application market**, or you can uninstall the installation package from the mobile phone application market**, which can generally solve some problems that cannot be installed.

6. If the mobile phone is still unable to install the software, or it may be caused by the low system version of the mobile phone, the user can upgrade the system version of the mobile phone first, and then install it, which can generally solve the problem.

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1. If the network is not turned on, it is impossible to check the update [in Settings - Wireless Network - Enable Network]. 2. System network problems [restore network settings] or update directly on the computer. Option 1:

Restart the device According to the prompt information, the current update cannot be verified because the iPhone is not connected to the network, but in fact, the phone is connected to the network, but there is a problem with the network connection with Apple's update verification server, resulting in such a problem. In the case of passing, you can try several more times, or you can shut down and restart to try again. Option 2:

Change the wireless network DNS address 1. If the first method cannot solve the problem, the next method can solve the connection problem with the Apple update verification server by changing the wireless network DNS address. Here take iPhone as an example, first please open the "Settings" app on the home screen. 2. Next, in the settings list, click on the "Wireless LAN" column.

3. Then click the "Information" icon on the right side of the wireless network that you are currently connected to. 4. Next, we can click on the DNS column, delete the original address, and then manually add or address. 5. When the DNS address of the wireless network is changed, we will go back to the update and try to continue the verification, which should solve the problem.

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If the system shows that the verification fails, it may be because: 1. The upgrade file of ** is incorrect, you can try to re-upgrade and re-upgrade. 2. The hardware or software environment does not support upgrading, you can try to update the driver or replace the hardware.

3. When the server is overcoded or the network is interrupted, you can try to reconnect to the network or change the network. 4. If there is an unexpected situation during the upgrade process, you can try to restart the device and upgrade again.

1. When the mobile phone installs the software, it prompts that the installation package is damaged and cannot be installed due to many reasons, one is the problem of the installation package itself, the second is due to the network signal, the mobile phone has a packet loss situation when the software is **, and the third is caused by the mobile phone system, which still needs to be understood for these points.

2. If the problem of the software installation package itself is cautious, the user can find the installation package of the software to delete the operation, and find the original file containing Zheng Xun to delete, and then re-install it, or turn off the mobile phone after deletion, and then reinstall it.

3. If the installation package is damaged due to network reasons and cannot be installed, the user can delete the installation package, find a place with a better network signal and try again, and if it is a mobile phone system problem, you can turn off the mobile phone and restart it again, if the above methods can not solve the problem, you need to find a professional to detect.

4. When installing the software, it is also a headache to not be able to install normally, if the user encounters this situation, don't panic, first restart the phone, it can generally be solved, if it still prompts that it cannot be installed, it may also be caused by the mobile phone memory, you can clean up the mobile phone memory, or uninstall some infrequently used software in the mobile phone, so you can.

5. Or check whether the unknown ** of the mobile phone is turned on, if the mobile phone is closed unknown**, it is impossible to install software other than the mobile phone application market**, or you can uninstall the installation package from the mobile phone application market**, which can generally solve some problems that cannot be installed.

6. If the mobile phone is still unable to install the software, or it may be caused by the low system version of the mobile phone, the user can upgrade the system version of the mobile phone first, and then install it, which can generally solve the problem.

It's because there is a problem with the network connection of the current phone.

1. Next, please click to open the "Settings" app on the home screen.

2. Click to open the "Wi-Fi" column in the settings list.

3. Next, in the list of wireless networks, click the "Info" icon on the right side of the network that is currently connected to the network.

4. Then we will see that the IP address of the wireless network is currently obtained, in the DNS column, you can manually modify it, here you can modify it to this address first.

5. Then we go back to the update interface, reinstall it, if not, please go back to the wireless network IP information interface, and change the DNS to this.

6. Modify the DNS address, just like we take a detour to choose a route that can be passed, and when you complete the update, you can change the DNS address back in the same way.

7. It is recommended that you use iTunes on your computer to update and upgrade. First, connect your phone to your computer and open the iTunes software.

8. Take iPhone as an example, and then click the iPhone icon in the window.

9. Then click the "Check for Updates" button in the iTunes window.