c.)
The RS232, RS485, WAN, USBLAN leds will be flashing during 30 seconds until boot.
d.)
At the end of the boot process, only the WAN, USBLAN leds are flashing for 5-10 seconds.
e.)
When the connectivity LEDs are not blinking anymore the load of the system has finished.
f.)
If the WAN (APN) was not configured, the SIGNAL LEVEL low LED is blinking which means
the router tries to connect to the wireless network. If it will was configured properly (APN,
password and SIM PIN is matching) and the registration was succesful, then the WAN led
