ZyXEL Communications LTE Series User Manual page 24

Figure 13 Reset Button (LTE7240-M403)
Figure 14 Reset Button (LTE7461-M602 / LTE7480-M804 / LTE7480-S905 / LTE7490-M904)
Make sure the Zyxel Device is connected to power and POWER LED is on.
1
To set the Zyxel Device back to the factory default settings, press the RESET button for 5 seconds.
2
Note: If you press the RESET button for more than 2 seconds but less than 5 seconds, it will
cause the system to reboot.
Chapter 1 Introduction
LTE Series User's Guide
24