I recommend to you the liberation by means of Imei, since this one supports all the cell phones models, also it is very simple of using. Also you can choose for last unloker or for SEtool Box 3


Imei
Unlock your SonyEricsson by code
Everywhere in the world (every country, every provider)
No software and NO cable needed!
Every SonyEricsson model supported.
Not ANY technical knowledge needed
100% legal and keep your phone warranty!