Adding Trusted Root Certificates to iOS15 is slightly different to earlier versions so here is a quick guide on how to add a trusted root certificate for web filtering etc to Apples latest iOS. When downloading the certificate you can do this from either the vendors website that hosts the certificate or via E-Mail etc the process is the same once you have the certificate downloaded to the device.
Having issues with iOS1 5 not installing check out this guide on how to remove a stuck update.
Installing the Trusted Root Certificate
Download the certificate from either the vendors website, your internal filtering system or wherever you have the certificate stored.
Click Open with
Click Save to files
Select On my phone
Click Save
Click Settings
Click Profile downloaded
Click Install
Click Install on the warning
Click Install
Enter your pass code if one if setup on the device
Click Done
Click Settings
Click General
Click About
Click Certificate trust settings
Turn on the installed certificate so it is a trusted root certificate
Click continue when prompted
Adding Trusted Root Certificates to iOS15
Download the certificate you wish to install
Click open with
Select Save to files
Select to save to My iPhone or My iPad
Go back to the main screen and open Settings
Click Profile Downloaded
Click on Install
On the Warning screen click Install once again
Click on Install
Enter the device passcode if one is setup
Once the profile shows as Verifies click Done
Press the home button again and go back into settings
Select General
Select About
Select Certificate Trust Settings
Tick the button next to the profile you have just installed
Click Continue on the Root Certificate warning
Setting your MAC to not be private/dynamic if you use a filtering system that uses MAC Authentication
Click the home button and open settings
Click on Wi-Fi
Click the i next to your connected Wi-Fi profile
Untick Private Address
You will notice now that your MAC Address has changed back to the static MAC Address of the Phone which can be found under General and About
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