Currently there are numbers of Japanese Softbank/Docomo mobiles unlockable which can be used world wide. Some are unlocked via soft unlocking (through PC, cable, software) and some can only be unlocked via...
If you've recently bought a pre-owned Hiptop (1, 2, 3 or 4) you'll have a world of trouble 'registering' it on the network. Simply put, they will have been registered by a previous user so will contain all of...