IMPROVEMENTS PHONE SOFTWARE

In general, improvements in mobile phone software, there are 4 categories of action, namely:1.Set To Factory Default / Master ResetThe way these improvements is to return all phone settings to the initial regulatory as a new phone out of the factory. This improved method does not go through the process of flashing but will only do the Reset to all phone settings. This process will result in the user data will be lost, you should do a data backup first.Repair method that resolves the problem: