One of the guides I have read claims that by using flash tool Sony will be unaware that the BL has been unlocked. Correct me if I'm wrong but I don't believe the unlock code can be generated without requesting it from Sony.
Flashtool simply automates things you normally do by typing adb commands. I unlocked 3 BL in Z2's and it was perfectly safe for me. Just be sure not to disconnect phone from computer during this and everything should be ok
The stereo speakers onthe Sony Xperia Z2areprobably a relatively large … more
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