Mg4 Firmware Update ((hot))
One of the most notable changes in recent firmware is the adjustment to the State of Charge (SoC). Earlier models had a "buffer" that meant a 100% charge wasn't truly 100%. New firmware has unlocked this buffer, resulting in a slight increase in real-world range.
If your car is under warranty and you are experiencing bugs, the dealership should apply these updates free of charge.
: Adaptive Cruise Control (ACC) now remembers your last distance setting and adjusts speed in 5 mph/kph increments with a long press.
Perform a hard reset. Press and hold the physical Home button or the Volume Down knob under the screen for 15–20 seconds until the MG logo appears. Loss of Settings After Update mg4 firmware update
Ensure your MG iSMART app is also updated to the latest version on your smartphone to maintain sync.
Note: A recent infotainment version (R30, R33, R40) does not mean your BMS is updated. You need a dealer tool to see the VCU firmware, usually labeled with a code like "F-xxxxx."
The MG4 firmware update focuses on battery/thermal improvements, smoother motor and regen behavior, infotainment bug fixes, and small ADAS tweaks — generally positive for range, longevity, and usability, with minor risk of regressions. Install when convenient but monitor performance afterward. One of the most notable changes in recent
MG4 firmware updates are an essential part of maintaining and improving the vehicle's performance, safety, and overall driving experience. By understanding how firmware updates work and what to expect from them, you can ensure that your MG4 remains up-to-date and continues to provide years of reliable and enjoyable driving. Whether you're a current MG4 owner or considering purchasing one, stay informed about the latest firmware updates and take advantage of the benefits they bring.
Here’s what you need to know about MG4 firmware updates:
Open the charging menu on the screen or via the iSmart app. Delete your old schedules, cycle the setting off and on, and recreate the schedule. Summary Checklist for Owners If your car is under warranty and you
As of late 2025, MG is rolling out software revisions. These include:
If your MG4 suffers from jerky adaptive cruise control, slow DC fast-charging, or aggressive steering tugs, you likely need module-level updates that cannot be delivered over the air.
Deep module flashing drains power. If you are attempting updates, make sure your vehicle is turned on or connected to a charger so the high-voltage pack keeps the 12V auxiliary battery topped up.
Past updates have directly addressed cabin heating inefficiencies during freezing temperatures. Key MG4 Firmware Versions and Known Fixes
The Ultimate MG4 Firmware Update Guide: Boost Performance and Fix Bugs