Error code occurred during ECU Upgrade (5021-10-7F7F)

Jeong, DJ TSC GIT

August 05, 2024 23:58 Updated

Symptom: While ECU upgrade 1450 is in progress, error code [5021-10-7F7F] is found with

upgrade failure.

Cause: An IBU reprogram Mode NRC has occurred due to ES95485 Extended Mode.

Resolution: IBU replacement is required.

* The IBU replacement solution for 5021-10-7F7F is limited to the event 1450.

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