Navigate to Settings > System > System Update (or MCU Update if listed separately).
To apply the update, follow these standard steps for MTCC units: Mtcc-kld6-v3.06 Update
If your MTCC unit is struggling with instability or poor Bluetooth connectivity, the update is a solid, reliable choice. It acts as a final "polishing" update for older, reliable hardware. Navigate to Settings > System > System Update
# Verify current version cat /etc/mtcc_release the update is a solid
If "Mtcc" refers to a , this update is critical for fixing the CAN-bus decoding (steering wheel controls) or Bluetooth connectivity.