MG has acknowledged that the current OTA implementation is "immature." For the 2025 model year MG4 (often called "MG4 Refresh"), the hardware has changed to allow full ECU updates via 4G/5G.

For current owners: Do not hold your breath for a "magic" OTA that fixes everything. The most reliable path to a stable car is a single visit to the dealership to flash the November 2024 VCU patch (which bundles the LKA fix and the battery pre-conditioning logic).

While rare, performing an MG4 software update incorrectly carries a risk. If the 12V battery drops below 12 volts during a dealer update, the programming session can fail mid-way, "bricking" a module. This is why dealers use a power supply (booster) connected to your 12V battery. Never attempt a major USB update (if you find a file online) without a battery tender.

The 10.25-inch touchscreen has been a point of contention. Early versions suffered from black screens, unresponsive inputs, or lag.

Perhaps the most vital MG4 software update is not for the screen, but for the battery. Early MG4s had a very conservative charging curve. At a 150kW fast charger, the car would peak at 80-90kW and then drop drastically after 50% State of Charge (SoC).

The Fix: A dealer-applied BMS update (often labeled "BMS V2" or "Charging Logic Refinement").

Post-Update Results: