27/004/2013 00:04:34 - INFO - Checking header
27/004/2013 00:04:34 - INFO - Flashing data
27/004/2013 00:04:35 - INFO - Loader : S1_Loader_Root_773f - Version : R4A069 / Bootloader status : ROOTED
27/004/2013 00:04:35 - INFO - Disabling final data verification check
27/004/2013 00:04:35 - INFO - Processing kernel.sin
27/004/2013 00:04:35 - INFO - Checking header
27/004/2013 00:04:36 - INFO - Ending flash session
27/004/2013 00:04:36 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ER R_STATIC="SIN_HEAD_VER";ERR_DYNAMIC="Failed to verify sin header";
este es el error que me tira, que hagoo!!