I'm sorry you are having this problem. I'm glad you have the skills to do the chip replacement.
We cannot support the reprogramming of boards unless there was a manufacturing defect (such as you received a FRDM board with the MBED OpenSDA firware).
The best thing to do is to again order the KV31, but get the one with P suffice, and do the replacement.
Regards,
Philip Drake
Senior systems applications engineer
NXP