Download Android Helper Tool 2017: FRP Unlock - IMEI WriterMHL Android Helper Tool 2017: FRP Unlock - Write IMEI and more.
Factory Reset Protection (FRP) is a security method that was designed to make sure someone can't just wipe and factory reset your phone if you've lost it or it was stolen. Starting with Android Lollipop, FRP is "standard" in vanilla Android, and most companies making our phones have implemented it in their own models.
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its Also Allow you to write / fix imei
What is imei ?