All Moto X Invalid Sim Fix is Very Simple
Guide
1- Mobile Reboot To Fastboot By Pressing Volume Down+Power
2- Select Bp Tool And Press Volume Up
3- When Mobile Start Normal Success Then Install Diog Port Driver
4- Open Nv Writer Tool And Select Comport And Connect
5- Press Read
6- Write Nv Files
7- After Write Nv Files Mobile Reboot
8- Congratulations Your Phone Fix
Nv Files And Writer Tool Link
https://mega.nz/#F!OVs3hSJa!EwUPxR5zjauguInhf9tpog