Mg4 Firmware Update _verified_ -

Keeping Your MG4 Electric Sharp: A Guide to Firmware Updates

R59 (Latest Major Update): Significant improvements to ADAS, including a shortcut to deactivate Lane Keep Assist (LKA), intuitive Adaptive Cruise Control (ACC) button responses (5 mph jumps), and improved Bluetooth stability. mg4 firmware update

1. Go to Settings -> System -> About.
2. Look for "System Version" (e.g., SWI69-29958-1300R30).
3. Cross-reference this number on MG EV forums (like The MG EV Owners Club or MGEVs.com) to see if you are on the latest release.

6. The "Dead 12V Battery" Fix

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. Keeping Your MG4 Electric Sharp: A Guide to

1. Connect to Wi-Fi: The MG4 does not update via 4G/5G mobile data. You must connect the car to a stable Wi-Fi network (such as a home router).
2. Battery Level: Ensure your battery is above 20%.
3. The Process: Go to System Update in the menu. If an update is detected, a download button will appear.
4. Wait: The car will need to be stationary with the doors closed. Do not attempt to drive while the update installs.

: The vehicle is connected to a diagnostic computer to download and install proprietary files. Go to Settings -> System -> About

Over-the-Air (OTA): Updates for the iSMART infotainment system and navigation. These can be done by the owner.

Crucial Check: If your MG4 is running an older software version (often version 59 or older), you likely cannot update the car yourself. You must visit an MG dealership to have the software updated to the latest version (commonly version 66 or higher). Once the dealer performs this major update, the car is usually "unlocked" to receive future smaller updates via Wi-Fi automatically.

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