How to factory reset SONY Xperia Z4v? How to wipe all data in SONY Xperia Z4v? How to bypass screen lock in SONY Xperia Z4v? How to restore defaults in SONY Xperia Z4v?
The following tutorial shows all method of master reset SONY Xperia Z4v. Check out how to accomplish hard reset by hardware keys and Android 5.0 Lollipop settings. As a result your SONY Xperia Z4v will be as new and your Qualcomm Snapdragon 810 MSM8994 core will run faster.
Sony Xperia Z4 hard reset or pattren unlock(password unlock)... - video
Hard Reset will erase all of your data
All described operations you are doing at your own risk.