In Audi enthusiast forums (especially on a5oc.com), a community developer named has released a free FEC activator that can enable map updates and additional functions on many MHS2 firmware versions. The activator is designed to back up the existing FEC codes, then patch the system to accept newer maps and hidden features.
This problem is consistently resolved by moving to P1242 or P2035 .
Press and hold the toggle or CAR button upward while simultaneously holding down the MEDIA or MENU selector button down. mhs2-er-au-p1240
You may also encounter firmware versions with a "K," such as MHS2_ER_AU_K0471 . This distinction is important:
Ensure the file structure is correct (the metainfo2.txt must be on the root, not inside a subfolder). In Audi enthusiast forums (especially on a5oc
💡 : Since Metaswitch was acquired by Microsoft, technical documentation and firmware updates for this specific hardware are usually managed through the Microsoft Azure Operator Nexus or the legacy Metaswitch Communities portal.
This string of characters can be broken down to reveal exactly what system your car is running: Press and hold the toggle or CAR button
If your Audi is running version (often paired with MU Software 0211 ), your infotainment system is capable of several modern integrations: