If you are seeing "BOOTLOADER Version 2.40 MMI(H43) application update"
: Fixes for the amplifier, Bluetooth, and CD changer. bootloader version 240 mmi h43 download new
usually contain the necessary bootloader files to restore the system. Part Numbers: 4L0 998 961 (Europe/Rest of World for A6, A8, Q7) 8K0 998 961 (Europe/Rest of World for A4, A5) 4F0 998 961 (North America) Where to find them: It is highly recommended to order these from an Audi Dealership or a reputable seller like If you are seeing "BOOTLOADER Version 2
Once finished, select "Restart MMI" at the bottom of the list. ⚠️ Critical Warnings U-BOOT_v240
Once complete, select to return the system to its normal state. Why Update?
U-BOOT_v240.bin (or sboot.bin)mmi_h43_firmware.binflash_all.sh (or flash.bat)