This method is applicable to CarlinKit 3.0/4.0
This error message appears, you need to upgrade the firmware，You can try updating to a new version of firmware to see if this fixes the issues.
1, prepare a 32G or less USB flash drive
2, first format the U disk to FAT32
3, put the firmware into the U disk (U disk can only have a file "U2AW_AUTOKIT_Update.img")
4, find a plug to power up the product, and then plug the U disk into the box USB port to upgrade
5, upgrade when there are red and green lights flashing, do not power off, wait until only the red light is on, and then wait 3 minutes to unplug.
For the latest carlinkit 4.0 firmware please contact our technicial team at: email@example.com