Humax F1-VACI User Manual - Page 21

Symptoms Check Points Viaccess is not applicable to this service. Check the insert of CI module and smart card. Check whether the CI module, smart card and receiving stream are same. About Front message (in case of Software download) : Incorrect data block (CRC-16) Try to turn STB power Off and On. system ID : Invalid Check whether the system ID is different for Software and STB. : UART RX/TX time out Try to turn STB power Off and On. 18