How to flash global ROM on Nubia Z20

If you bought a Nubia Z20 smartphone from China, there are chances that it came with the Chinese ROM installed. Even though the phone works perfectly, it does not have Google Play Services (including Google Play Store) installed, so getting apps may pose some troubles. However, you can easily flash the global ROM and migrate the Nubia Z20 from Chinese ROM to Global ROM in a few easy steps. Keep in mind though that this is a bit risky and…