Problem of obtaining device serial number with Hexagon SDK

Dear all,
I tried running the getserial on Dragonboard 410c with Hexagon SDK 2.0
but it seems like getserial can not get serial number on 410c.

following is error message:

WARNING: linker: ./data/getserial: unused DT entry: type 0x6ffffffe arg 0x304
WARNING: linker: ./data/getserial: unused DT entry: type 0x6fffffff arg 0x1
Could not retrieve serial num

Could anyone teach me how to solve this problem?
Best reqards,

Which software do you try to run this on? Android? Debian? Which versions?

Regards,
Bjorn

Hi,
Thanks for your reply.
The software run on Drangonboard is android 5.1

Thanks.

Hi chotofu, Can you tell me how you used the getserial command on 410c. I am trying to find serial number of db845 using getserial.
Thank you