You will see signal bars and the carrier name (e.g., "T-Mobile" or "Idea").
This is the "Top" part of the method. The FTF alone does not remove the lock; it opens a temporary security hole. You must now force the keymaster service to crash. sony sov33 lock remove ftf top
Flashing alone won’t remove the lock. You need to edit the where the lock flag lives. You will see signal bars and the carrier name (e