Some of Verizon's devices (Lanner and Advantech) are configured with "Console Redirection Settings">"Bits per second" as 9600 and "Legacy Console Redirection Settings">"Redirect After POST" is set to "BootLoader" in BIOS
Issue 1: Unable get access BIOS/POST screen
Step 1: Console to the device with speed 9600
Step 2: Navigate to "Advanced --> "Console Redirection Settings" and change the "Bits per second" to 115200
Step 3: "Save and Exit" post which you should be able to console with speed 115200 and access the BIOS
Issue 2: Unable to boot (no "boot:" prompt) from USB though the drive is detected by BIOS
Step 1: Navigate to "Advanced --> "Legacy Console Redirection Settings"
Step 2: Change the "Redirect After POST" to Always Enable
Step 3: "Save and Exit"