My name isXXXXX will assist you.I am sorry to hear that you are having this issue.
Try this please>
Enter the default pin 0000
Please let me know if this does not work for you and we will continue working on your issue.
okay, try this next please>• This will set the rating level to the factory preset.1 While the unit is on, press and hold [OK], theyellow button and the blue button at thesame time for more than 5 seconds.• “00 RET” is displayed on the unit’s display.2 Repeatedly press [>] (right) until “03 VL” isdisplayed on the unit’s display.3 Press [OK].• “INIT” is displayed on the unit’s display