Installing firmware using the MT6765 scatter file is a standard procedure for device unbricking and software repair. It does not involve a traditional installation wizard but rather utilizes the SP Flash Tool to map partition data onto the device's internal storage.
How to Use a 6765 Scatter File: A Complete Guide to Flashing MT6765 Devices 6765 scatter file install
When the process is finished, a window with a or "Download OK" will appear. You can now disconnect your phone and power it on. Note that the first boot can take up to 10 minutes. Common Troubleshooting Tips Installing firmware using the MT6765 scatter file is
Flashing will erase all data. Back up your photos and contacts first. 6765 scatter file install
Technical Paper: Understanding and Installing the MT6765 Android Scatter File