While the Android operating system handles the apps and user interface, the MTCC-KLD6 firmware ensures that the underlying hardware communicates flawlessly with the software. The "KLD" designation indicates that this firmware is originally designed for head units manufactured by Klyde (Shenzhen Klyde Electronics), though it is often compatible with other cross-branded MTC units. Key Improvements and Features
Copy mcu.img directly into the of your formatted MicroSD card or USB drive. Do not put it inside any subfolders. Step 2: Access the Update Interface Mtcc-kld6-v3.06 Update
: If you experience issues with Bluetooth calls, the fix is not to reinstall the ROM but to adjust the MCU's Bluetooth settings. Go to Settings -> Factory Settings , enter the code 126 , navigate to the Application tab, and change the BT option from "IVT_BT" to "WQ_BC6". This is a known MCU-level tweak that resolves the problem on many KLD6 units. While the Android operating system handles the apps
If your unit suffers from the following, this update might be necessary: (lasting over 30 seconds). Unresponsive touchscreen in specific areas. Do not put it inside any subfolders
: Released around March 2017, the v3.06 update targeted these specific integration issues. One of its standout features was the automated handling of steering wheel controls via the CAN bus system , eliminating the need for manual setup by the user.