Reset Button  
The  modems  “Reset” button  is  used  to restore the modem to its original factory 
default settings. To restore the router to factory default settings, the user needs to 
press the “Reset” button and hold it until all the modem indicator lights go off, the 
router will then restore its original factory default settings and restart automatically. 
Note  that  the  reset  button  is  under  the  SIM  cover  to  prevent  accidental 
resets.