Important Information for Ethernet ECU Upgrades Using an LTE/5G Tablet

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

Reason: Even if a static IP address is configured to use the Ethernet protocol, it is processed as a dynamic IP address, preventing the CCU from recognizing the diagnostic tool.

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