This guide is for Windows.
- Connect phone via USB to PC, wait a while for drivers to install.
- Install "Minimal ADB Fastboot" (from XDA-Developers).
- Enable USB DEBUG under "Config / Developer Options" on phone.
- Open a Command Prompt under the folder "C:\Program Files (x86)\Minimal ADB and Fastboot"
- Open phone adb shell:
adb shell - Use the following commands:
# to find packages:
pm list packages | grep soagent
pm list packages | grep wssyncmldm
# to disable packages (USE THESE):
pm disable-user --user 0 com.sec.android.soagent
pm disable-user --user 0 com.wssyncmldm
# to reenable later (IF YOU CHANGE YOUR MIND):
pm enable --user 0 com.sec.android.soagent
pm enable --user 0 com.wssyncmldm
From my experience, the biggest security risk to technology is the person using it. If you're moderately safe while using the phone, I don't believe you should have any problems disabling updates.
The people who tend to go through the process of disabling forced updates are paranoid people who don't trust the company pushing the updates, which means they're less likely than an average person to need up to date security.
It'll ultimately be up to you to decide if it's worth it.