⚠️ If your head unit uses any other processor or Wi-Fi chip, do not attempt to install this firmware . Doing so will result in a hard-bricked unit. 🔍 Signs You Need a Firmware Update

Perform a via the Android settings menu to wipe old cached data and ensure a stable, fresh system environment.

Ensure your car battery is stable. Do not turn off the ignition while the update is running. 4. Trigger the Update

Typically 1GB RAM / 16GB ROM or 2GB RAM / 32GB ROM MCU Controller: STM32F030C8T6 (WJ/ZXDZ specific version) Bluetooth/GPS/Wi-Fi: MT6625

Alternatively, if your unit is soft-bricked, hold down the physical while turning on the accessory (ACC) power to trigger an automatic flash. 5. Post-Installation Reset

Unzip the contents directly to the root directory of the USB drive. Do not place files inside folders. 3. Connect and Power the Device

Using the wrong software variant can easily "brick" the device. This comprehensive guide outlines the exact hardware specifications, signs that you need a firmware update, and the correct procedure for safely updating your CVD1810WJ head unit. 🛠️ CVD1810WJ Hardware & System Overview

Download the appropriate CVD1810WJ update package (e.g., WJ_2025.10.28 or newer versions like CVD1810-WJ_25.03.05 ).