What I'm asking is can you find those updates and load them manually since my carrier never did? I found these instructions but where can I find those firmware updates? Here is what I found:
Here is the current update: Android 7.0.1 Nougat
The details
Release date: April 5, 2018
Android version: 7.0.1
Security patch level (SPL): March 1, 2018
Baseband version: G920AUCS7ERC1
Build number: NRD90M.G920AUCS7ERC1
Previous version required: G920AUCU7ERB1
File size: 31.7MB
The updates
What's changing: Android device security updates
Getting started
You can download the update via Firmware Over the Air (FOTA).
You must connect your device to Wi-Fi to download the update.
Although there should be no impacts to settings or data, we recommend that you back up your media files to an SD card, a PC, or using a favorite application, prior to upgrading the software.
To receive this software update, your device must be on baseband version G920AUCU7ERB1. If not, repeat the update process until you’ve installed baseband version G920AUCU7ERB1, and then you should be able to install the latest software update.