How to update the firmware of car stereo?

CAUTION
The USB storage device for updating must contain only the correct update file.
Never turn the product off, disconnect the USB storage device while the firmware is being updated.
You can only update the firmware when the vehicle is stopped and the parking brake is engaged.

Starting Procedures

1. Download the firmware update files into your computer.
2. Prepare a U disk with a size of 4G or more and less than 32G. (You can back up the U disk files first.)
3. Format the U disk. Make sure the file system was chosen FAT32. (This is very important!)
4. Unzip the downloaded file.
5. Copy the file “XXXXXXX.BIN” to the formatted U disk (root directory).
6. Start your car to start the car stereo.
7. Insert the U disk to the car stereo. The car stereo would reboot automatically. Seconds later then the screen would show updating information. Touch [Update]
   Just wait for the updating, do not stop the car stereo or cut off the power during updating. It may take about 3-5 minutes.