To restore your phone the way it used to be, it may be in some way to recognize the problem of your phone, and find out if there is a similar case and whether there is a solution like the case in your phone.

Or maybe with the last step is to refactory your phone, but here also need to be considered, do the refactory then all the data on your phone will be lost, so when the refactory process finished your phone like a new phone in the purchase with standard mode when the initial use .