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.
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