couldnt check find device status in xiaomi after root

this is happen after i root i couldnt check find device status to login to mi account so what the problem??
the problem is unlocked bootloader unofficialy so how to re lock it again
what you need??

1. your fastboot rom get the emmc_appsbot.mbn
2. file anf for command command here 

STEP 

1.  extract again your rom and get the emmc_appsbot.mbn and put to anf folder
2.  open anf folder and double click cmd
3.  go to fastboot mode volume - and power press together
4. command
   

   fastboot flash aboot emmc_appsboot.mbn
   fastboot flash abootbak emmc_appsboot.mbn

   and reboot
   

   fastboot reboot

bootloader locked and you can sign in to miui afer root ..i already test that