IMEI corrupt

Hi there,

Please don't flame here, i know writing IMEI is consider not to legal, but i'm looking for a trick to write it back to my Moto X Play.

I don't know why it got corrupted.
here where am i at:
- bootloader unlock
- rooted
- custom recovery or stock possible
- custom firmware or stock possible
- i'v try with "fastboot oem writeimei"

i need help of a professional now ?
is my only change will be to use service of someone with SigmaBox ?

thank's for reading