When you perform an "UPD" (Update), you are replacing the logic or the firmware that governs these rules.
Vulnerabilities (like the infamous "RCE via Modem AT commands") are often patched via HMonitor updates, as the monitor has direct command-line access to the modem. lte hmonitor upd
For Huawei E3372 or E8372 sticks in "HiLink mode": When you perform an "UPD" (Update), you are