Changan CX70 Car DVD System Software Upgrade Guide

About this manual

This manual provides step-by-step instructions for upgrading the software of the Changan CX70 car DVD unit. It covers preparation steps, including downloading and formatting the upgrade files onto a USB drive with at least 4GB of free space.

The guide details procedures for updating specific components (APP and MCU) and performing a full Operating System (OS) firmware update. It includes critical safety warnings regarding ignition states during updates and instructions on how to verify that the upgrades were successful by checking version numbers. This manual is written in Chinese.

What's inside

• Preparation
• APP and MCU Software Upgrade
• Operating System Upgrade
• Verifying Upgrade Results
• Safety Precautions

Frequently asked questions

What is the minimum required capacity for the USB drive used in this upgrade?

The manual requires a brand-name USB flash drive with a capacity of at least 4G.

What specific date must be set before starting an OS firmware update?

You must set the time to 2099-10-18 before proceeding with the system firmware upgrade.

What happens visually during the operating system upgrade process that is considered normal?

The screen may display color distortion or flashing, which the guide states is a normal phenomenon.