Huawei ETS-668, 678, 688, etc Nam Programming:
Debug Mode: ##44+Menu
Debug Screen: ##33+Menu
CDG2 Test enable: ##234+Menu
CDG2 Test disable: ##432+Menu
China Lang Select: ##123+Menu
Blocking Debug Code: ###888+Menu
Home System Only On: ##461+Menu
Home System Only Off: ##460+Menu
Debug Mode: ##44+Menu
Debug Screen: ##33+Menu
CDG2 Test enable: ##234+Menu
CDG2 Test disable: ##432+Menu
China Lang Select: ##123+Menu
Blocking Debug Code: ###888+Menu
Home System Only On: ##461+Menu
Home System Only Off: ##460+Menu
