As you need internet connectivity to update your iOS 12/13, you can use your cellular data in place of WiFi. … Moreover, just double check your phone’s battery as it should not be less than 50% if you want to install the update.
Can I update iOS 14 using mobile data?
To download iOS 14 using mobile data (or cellular data) follow these steps: Create a Hotspot from your iPhone – this way you can use the data connection from your iPhone to connect to the web on your Mac. Now open iTunes and plug in your iPhone. … Run through the options to download and install iOS 14.
How do I update iOS with cellular data 2020?
To download iOS updates over 5G, users will have to enable the “Allow More Data on 5G” mode in the Settings app under Cellular > Cellular Data Options > Data Mode.