Important Check When Upgrading an Ethernet-Based ECU Using an LTE/5G Tablet

When upgrading an ECU that uses the Ethernet protocol with a carrier-connected (LTE/5G) tablet, you must turn off mobile data.

Reason: Even when a static IP address is configured for Ethernet communication, it is processed as a dynamic IP address, preventing the CCU from recognizing the diagnostic tool.

For details, refer to the pop-up message displayed on the diagnostic tool below.