The hard reset for the Sony Xperia M4 Aqua is the same as the reset of the Sony Xperia M4 Aqua dual mobile phone. These mobile phones have two options when it comes to doing a hard rest back to the factory settings. The instructions are pretty much the same for both. Also remember to backup your data before you do a reset.
Once you have done a hard reset of the Sony Xperia M4 Aqua all the data will be deleted including all your internet settings. If is best to make a backup of your mobile phone before you do a reset. This can be done with a number of programs however the Xperia PC Companion is the easiest way to backup your mobile phone. You will find the PC Companion on this website located here.
Note that if you do not backup your mobile phone you cannot recover the data later. Things such as video files, mp3 files your apn settings and messages will be be deleted. People normally do a reset if their phone is being sold or they are wanting to start the phone from its original factory settings.
The two ways of doing a reset it explained below. The one is done via the menu while the other is done via simple codes which are entered into the M4 Aqua mobile phone.
Once last warning, that it is best to backup your phone and also remember your internet settings if you are going to use the phone again later after the reset.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.
Hard Reset Sony Xperia M4 Aqua using Menu
Hard Reset Sony Xperia by Code