Here is the guide on how to find and install the correct update.
Click "Update" or "Download" to install the latest protocol file directly . Method 2: Manual USB Update (IAP File) hiworld canbus update download
Most Hiworld updates are performed using a USB flash drive and the head unit's factory settings menu. : Here is the guide on how to find
Yes – keep v2.2.0 backup in the /rollback folder. : Yes – keep v2
After the Canbus update, your steering wheel controls might stop working until you re-configure them.
| Error Message | Cause | Solution | | :--- | :--- | :--- | | | Driver not installed or adapter not recognized | Reinstall CH340/CP2102 drivers. Try a different USB port. | | "Target device not found" | Incorrect wiring between adapter and decoder | Verify TX→RX and RX→TX. Ensure GND is connected. | | "Flash write error at 0x0000" | Firmware file is for a different hardware revision | Contact Hiworld support again. Do not force the flash. | | "Verification failed" | Corrupt download or unstable USB connection | Redownload the file. Use a short, high-quality USB cable. | | Decoder is bricked (dead) | Power interruption during flash (e.g., cable unplugged) | You likely need a new decoder. Some units have a recovery mode – hold a button during power-up. |