NG2 Baseband unlock without downgrading topic

First this is only a guide not a repost
NG2 Baseband
1. Use ssu.apk to unlock it first
2.use cf auto root to it
3 use adb:
su
am broadcast -a android.provider.Telephony.SECRET_CODE -d android_secret_code://27663368378
UMTS -> DEBUG SCREEN -> PHONE CONTROL -> NETWORK CONTROL -> GCF
There the phone is domestic unlock without downgrading the modem