Click "Download," power off your device, and connect it to your PC while holding the Volume Down (or both Volume) buttons. Where to Download the MT6769Z Scatter File?
Sometimes, specific addresses in the scatter file are used to format the FRP (Factory Reset Protection) partition. How to Use the MT6769Z Scatter File with SP Flash Tool mt6769z scatter file
High; using an incorrect scatter file can permanently "brick" a device by overwriting critical boot sectors. Click "Download," power off your device, and connect
[preloader] filename = preloader.bin offset = 0x00000000 size = 0x00040000 type = preloader " power off your device
It lists all 24+ partitions required for the device to operate, including security-critical areas like vbmeta and userdata .