Electronic certificates on iOS mobiles
Skip information indexiOS Profile installation error
"Profile Installation Failed" occurs when trying to import a certificate on IOS systems because the certificate is already installed on the device and you are using the same backup that you used the first time.
First check the available certificates installed in "Settings", "General", "Profiles".
If it is already installed but you still want to import, it will be necessary to delete the existing certificate or make a new backup copy from the computer where it is installed (renaming the existing copy does not prevent the error).
If you import an existing certificate from a different backup, it will appear duplicated in the certificate store.