How to factory reset UMIDIGI Z2? How to wipe all data in UMIDIGI Z2? How to bypass screen lock in UMIDIGI Z2? How to restore defaults in UMIDIGI Z2?
The following tutorial shows all method of master reset UMIDIGI Z2. Check out how to accomplish hard reset by hardware keys and Android 8.1 Oreo settings. As a result your UMIDIGI Z2 will be as new and your MediaTek Helio P23 (MT6763V) core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.