: Improves the stability of the battery pre-heating button, which is essential for fast charging in cold weather. 📋 Pre-Update Checklist Since updates can take anywhere from 20 minutes to several hours , preparation is key: Document Faults
MG4 firmware updates, including recent R33 and 2025 releases, address critical ADAS issues like phantom braking, while introducing improved infotainment, including revised AC layouts and, for some, customizable steering wheel buttons. Updates are primarily handled at authorized dealerships. To learn more about the latest software features and known issues, visit the YouTube video about the MG4 SE Software Update www.which.co.uk mg4 firmware update
Fixed frequent phone pairing issues and iSmart connectivity bugs. It also updated the AC control page for Trophy models. : Improves the stability of the battery pre-heating
: Timeframes vary significantly. While minor fixes take 20 minutes, major cumulative updates (e.g., 18+ individual modules) can require the vehicle to stay at the dealership for 1 to 3 days. Over-the-Air (OTA) : While higher trims like the MG4 Essence To learn more about the latest software features
: Used primarily for navigation map refreshes or by technicians when standard diagnostic software fails to push an update. Key Firmware Versions & Fixes
Updates for the iSMART infotainment system and navigation. These can be done by the owner.
Before seeking an update, you need to know what you’re currently running. MG separates its software into two main components: the (the Android-based infotainment system) and the MCU (the module that controls how the car interacts with buttons and hardware).