Flex Hyundai/Kia SIM2K-510 SGW Detected Error Solution

Problem:

Tried to read the 2024 Hyundai Sportage Kefico SIM2K-510 ECU using Flex programmer by OBD.

Flex software says SGW detected and failed to connect via OBD.
No communication on bench (ERROR).

Any solution?

flex-hyundai-sim2k-510-sgw-detected-1

Solution:

This model uses CAN FD communication and Flex detects SGW gateway. You must connect a CAN FD adapter (FLX4.4) for reading.

The FLX4.4 adapter is on preorder now and will be shipped from 19th November, 2026.

flex-hyundai-sim2k-510-sgw-detected-2

Flex FLX4.4 CAN FD Adapter pinout

flex-hyundai-sim2k-510-sgw-detected-3

Is a CAN FD adapter necessary for this protocol?
Only for vehicles equipped with protected gateway (SGW).

 

FYI:
You can read ecu on bench by obd protocol but for this need FL4.4 adapter.

OBDII365