1. The symptom
: ECU Upgrade fails with a message "Failed(Code: Rule Worker Changing FW Mode Failed: ECU_UPGRADE_CAN)"
2. Cause
: Firmware split
3. Workaround
: Asia, Pacific, Middle East, Africa, Europe, Oceania, Central America, South America, Territory of U.S.A(Guam, Commonwealth of Puerto Rico, Saipan, and East Samoa)
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