In unlocktool when you try to Remove Huawei ID for Kirin CPU
You need to unlock fastboot then Backup OEMINFO and erase partition from your device
and turn on device and complete setup and may need to make pattern lock
then now you need to restore OEMINFO but in unlocktool there are no option to Flash Oeminfo
So what you need to Do to restore Oeminfo
Unlock fastboot again
Go open Batch file used in this video
Chooses option 1 in cmd and select your backup oeminfo
It will send your backup
Tutorial :
You need to unlock fastboot then Backup OEMINFO and erase partition from your device
and turn on device and complete setup and may need to make pattern lock
then now you need to restore OEMINFO but in unlocktool there are no option to Flash Oeminfo
So what you need to Do to restore Oeminfo
Unlock fastboot again
Go open Batch file used in this video
Chooses option 1 in cmd and select your backup oeminfo
It will send your backup
Tutorial :