1, the failure to install the app may be the reason for the security settings of the mobile phone, which is a measure taken to prevent users from installing some applications from unofficial channels and causing viruses in the mobile phone.

Solution:

1. Enter the phone settings and select "Security".

mobile phone

2. Set the "Unknown Source" switch to ON.

mobile phone

Second, analysis errors.

In addition, if we fail when we can't install the software, we are prompted "Error in parsing the installation file", which is an installation package error, which has nothing to do with the mobile phone, and may be malicious software. We can delete this installation package and download it again. When downloading the app, try to download and reinstall it in another application market. Download from official channels to ensure that the software source is green and non-toxic.

Solution: The reason for the parsing error may also be that your mobile phone does not support Chinese names or paths. Rename the installation package, the name only contains English, but do not change the suffix of the file name. Please try running setup again after making changes.

Unable to install software.

Third, the software installation location is improper.

When designing general software, the most favorable position for software operation has been set.

Solution: Therefore, after downloading, the preferred installation location is determined by the system when it is uncertain whether to choose system space or SD card space.

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4. Insufficient memory

If there is not enough memory to provide enough space for application installation, you will be prompted when installing. If the installation fails due to insufficient memory.

Solution: Click Settings-Save to see if the phone is really out of memory. We can use mobile phone cleaning software to clean up mobile phone garbage, or uninstall some unnecessary applications, or transfer to SD card to make room.

Unable to install software.

The reason for the systematic version of verb (abbreviation of verb)

At present, many softwares in the application market don't support systems below 4.0, and it's a helpless move that the software can't be installed because of the system version.

Solution: You can only upgrade your mobile phone or change it directly. But brushing the computer is risky, so you need to be careful when playing.