Bricked And Now Show Invalid Card!!

Help,

i bricked my phone because installing custom kernel,
then i flash stock again using flashtool and it boot again but now it keep saying "invalid card",
i checked using *#*#7372489#*#*,
open service info > sim lock, i got all the info value is 0
then i open configuration, i found out that "Bootloader unlock allowed : No"
even though i already unlock it before i brick my phone..

if somebody know how to fix this please help
thank you