Go to → select RAM Test and NAND/NOR Test . A failure in the NVRAM block often explains unresponsive keypads. If the test fails, go to the Format tab → choose Manual Format → enter NVRAM start address (look at scatter file) and format only that region. Then reflash the NVRAM partition from a backup.
Step-by-step: Typical flashing workflow
: A reliable cable for connecting the keypad phone to your PC. Quick Setup Guide How To Use SP Flash Tool (Full Guide) flash tool v5.1420.0 mtk keypad
This article will serve as your definitive guide. We will explore the nuances of SP Flash Tool v5.1420.0, how it manages MTK keypad drivers, step-by-step flashing procedures, troubleshooting keypad detection errors, and advanced techniques for unbricking MTK devices. Go to → select RAM Test and NAND/NOR Test
Custom Keypad Configuration / GPIO Key Mapping Prevention Then reflash the NVRAM partition from a backup
SP Flash Tool v5.1420.0 is a legacy version of the SmartPhone Flash Tool specifically designed for MediaTek (MTK) chipset devices. While often used for smartphones, it is frequently employed to service MTK keypad (feature) phones to unbrick, update, or repair firmware. Tool Overview
(not publicly available for this old version), the most relevant feature would be: