TAB-Austria Golden Island VC2 Operator's Manual page 57

Restore factory setting:
If EKEY switch lock system is of version 2.0 (see label auf IC), all keys including
Main key can be erased.
Procedure:
• Power OFF PCB.
• All DIP-Switch to ON position.
• Power ON -> red LED is active and goes off after app. 5 seconds.
• All DIP-Switches to OFF position.
Page 57