In SP Flash Tool v5.1420.0, one feature relevant to “MTK keypad” could be:
Connecting the phone while it was powered off, often while holding a specific "boot key" (usually the center button or '0') to force it into download mode. flash tool v5.1420.0 mtk keypad
For a standard update, leave the dropdown menu on . In SP Flash Tool v5
: Supports writing firmware in .bin , .txt , and scatter file formats to the device. In SP Flash Tool v5.1420.0