Solving Flex Compatibility Issues with SID209 ECU
Problem: It’s a Ford Transit 2018 with sid209 TC1797 ecu. Hardware number gk4a 12a650 ua. I’ve tried bitbox and Flex programmer . But hardware not compatible (obviously see hw not listed). Any solution? Solution: Sid209 GK4A version you need to boot unlock. Can’t write via obd straight away. Boot for readout, never had any luck with VR’s on GK4A. Same as Autotuner . Do it in boot mode or use other devices. Some had good success with Trasdata & PCM Flash.