How_why_IPhone Said:
"software and security Updates: is there anyway that I can download and install security update without being on WiFi because not only do i rarely have access to it now a days, but it seems that would be more “secure” for the purposes of a “security update”? I’m a newb to iPhones btw."
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Use Ethernet on a Computer:
Have a Computer? If so, install the updates through that. And, if no Wi-Fi, then use an Ethernet cable. Plug the Ethernet cable in to the computer and the router or wall outlet. If you have no Ethernet port on your computer, then use this: Belkin USB-C to Gigabit Ethernet Adapter - Apple
To Update your iPhone:
Update your iPhone using the iPad itself, a Mac, or a PC, even. How to do so....
Two Major Steps: - Backup then Update
1. Backup First: Make a backup of your device using iCloud or your computer.
2. Then, Update Using a Computer: