Be careful with pattern code on Sony Xperia Z. This can be easily snapped. See here how.
If you have a Sony Xperia Z, which is locked with pattern code, do not feel safe. The code can namely with a relatively simple procedure is being circumvented, write our site.
The only thing you have to do is press the “emergency call” from the lock screen.
Then select “Service tests” and including “NFC”. When I press the “NFC Diag Test” can you after a few seconds, just press the home button, and your phone is unlocked.
Today we have verified the security flaw and have to say that this also can be found on our model.
The alternative unlock can be done by pattern code. On the other hand, you use the PIN code, it works not.