Mg4 Firmware Update Jun 2026

To help determine if your car needs a workshop visit, tell me: What is your MG4? Are you experiencing any specific bugs or issues ?

The recommended method for most owners is to have updates performed by an authorized MG dealer during a scheduled service visit or by specifically requesting an update. To get the best result, you can contact your service center and specifically ask for the latest firmware for your vehicle. To ensure you receive all relevant improvements, you can specifically request key Service Campaigns like by name. This is the most reliable way to ensure all ECUs are on compatible, tested versions.

This method often results in mismatched software versions, as it only updates the MPU part of the infotainment system. Consequently, functions like the battery charge limit slider may stop working correctly. To properly finalize the update and enable all features, you or a dealer must run a configuration update using MG's SIPS diagnostic software.

To help me provide more relevant details, could you tell me you are experiencing with your MG4, your current software version if you know it, and which country you are driving in? Share public link mg4 firmware update

To update your MG4's firmware, follow these steps:

Once an OTA installation begins, do not attempt to drive, turn on the radio, or lock/unlock the doors until the screen confirms completion.

For persistent glitches—like a frozen driver display or a car that refuses to sleep—some owners temporarily disconnect the negative terminal of the 12V accessory battery under the hood for 5 minutes. This forces all deep ECUs to power-cycle completely. To help determine if your car needs a

. It is highly recommended to book this alongside a scheduled service. Policy Nuance

Fixes for Bluetooth connectivity, Apple CarPlay/Android Auto stability, and touchscreen responsiveness.

Wait for the infotainment system to reboot, displaying a "Success" message. Notable MG4 Firmware Patches and What They Fixed To get the best result, you can contact

| Software Version | Key Reported Effects | Known Issues / Caveats | | :--- | :--- | :--- | | | Adds a route planner, Emergency Lane Keeping (ELK) shortcut. It was considered a notable jump from early versions for owners. | Cripples the in-car Wi-Fi hotspot. | | SWI68-1300R63 | Aims to fix the Wi-Fi hotspot issue introduced in R59. | DIY update breaks the programmable charge limit slider in the car (can only use app or dealer config update to fix). | | SWI68-1300R67 | Focuses on improving Bluetooth stability and pairing. | Not a "cure-all"; other issues like a non-functional weather app may persist. | | MCU 68.4.3.0 | Often packaged with R59, this MCU (Microcontroller Unit) update is necessary for proper communication between the infotainment system and vehicle controls. | The latest MCU is 68.4.7.0 , which is generally more compatible with the newest infotainment versions. | | HVAC (Heating, Ventilation, and Air Conditioning) | Accompanied by infotainment updates, changes the HVAC display and rescales the temperature gauge for more sensible comfort settings. | | | ADAS (Advanced Driver Assistance Systems) / Lane Assist | This is a critical safety recall update. It aims to correct the overly aggressive and hazardous behavior of the lane-keep assist system. Owners have reported it transforms the driving experience, making lane assist far less intrusive and reducing random warning messages at startup. | |

A notorious issue where the high-voltage traction battery fails to top up the small 12V starter battery, leaving the car dead. A BMS firmware update revises the "wake-up" logic to prevent this.

Minor infotainment patches, map updates, and basic bug fixes.

: Long-pressing the steering wheel buttons now adjusts speed in 5 mph/kph increments instead of 1.