Carrier board lris and two vf50 cpu cards suddenly stopped working

previously these boards are working only ,while kernel image flashing time boot loader hangs after that onwards 1 cpu card console not came .
two cpu cards gone bad.
1.carrier board lris getting power after placing cpu card but console not coming

Hi @raghuram,

Have you tried reflashing the module?
Can you once more. If you are not able to flash the modules again, please send us the log files
(serial terminal).

Satyan Raj