This article provides a complete breakdown of what this firmware is, why you need it, how to find a legitimate version, and a step-by-step guide to flashing it onto your device using the SPD Flash Tool (formerly Spreadtrum Flash Tool).
and factory settings (found under Factory Settings, often using code Step 3: Installation Methods Method A: The USB Upgrade (Safest) How to Update Your Android Head Unit | Firmware/Build Sep 2, 2562 BE — sp7731e 1h10 native firmware verified