Do NOT turn off the car or turn off the ignition during this process. It can take 10–20 minutes. Critical Tips and Troubleshooting
A: Generally, no . Version 240 likely updates the OTP (One-Time Programmable) fuses. Downgrading will trigger a permanent anti-rollback lock.
: The system should automatically search and find the required files on the CD. : If prompted, select "SWUpdate" "Standard" "Start download" Completion bootloader version 240 mmi h43 download new
Disclaimer: Modifying automotive core files carries inherent risks. Ensure your vehicle battery is connected to a stable battery tender/charger during this process to prevent power loss.
The "Bootloader Version 2.40 (H43)" message is a recovery screen for the Audi MMI 2G High Go to product viewer dialog for this item. Do NOT turn off the car or turn
Upgrades internal drivers to support larger SD cards and modern USB file formats.
Connect a (minimum 10A to 15A) to your car's battery terminals under the hood. Version 240 likely updates the OTP (One-Time Programmable)
Once you have your CD prepared, follow these steps:
If your Audi screen is stuck on a black screen displaying your Multi Media Interface (MMI) system is currently in an emergency recovery mode. This typically happens after accidentally selecting "Start Bootloader" in the Hidden Green Menu or due to a critical software failure during an update. Immediate Warning: Battery Drain