So in this case i Tunes will backup the contents, reinstall i OS with a restore to factory default settings, then restore the contents from the backup.
Once the i Phone is rebooted, you can only restore to factory default settings.
Question: Can I update i OS on the device without unlocking it and without losing/wiping the data?
Update: As an aside to the actual question, I see that the FBI is not trying to do what I'm asking.
Try It Free Try It Free At this point you will now go through a detailed step-by-step guide on how to fix your i Phone using this software.
Ensure that you have downloaded and installed the software on your computer.
If your i Phone or i Pad won't finish downloading, gets stuck while installing, or won't turn back on after it's turned off, don't worry.
Install, launch this program and connect your unhealthy i Phone with the PC.
Here are 3 modes for you: Standard Mode, Advanced Mode, and Exit Recovery Mode. Next, the program will display a firmware that is compatible with your i Phone.
The Link from the i OS security guide puts you on this Apple support page.
On this page it states that if you choose the Update option, I now know this line to be a simplification.