Root/Unlock bootloader on Z3+ E6553

Question

I buy the phone from a friend, But it's locked MXTP, And he forget mail and password.

Can i unlock the bootloader with some program or something and then root it?

AC&MM · Answer

> [[cite Daniel Sony]]
>
> I buy the phone from a friend, But it's locked MXTP, And he forget mail and password.
> 
> Can i unlock the bootloader with some program or something and then root it?
> 

You just need to be assured the USB Debug option is activated. If it is, you can do that.

Daniel Sony · Answer

Can i do that without getting in to the phone settings? Because the phone is locked (MXTP)

AC&MM · Answer

> [[cite Daniel Sony]]
>
> Can i do that without getting in to the phone settings? Because the phone is locked (MXTP)
> 

So you need to use ADB commands to activate it. You can find them on internet.