Flex Not Connect with GPEC5 ECU via OBD?

Problem:

Magic Motorsport Flex unlocked Jeep Grand Cherokee WL 2021 GPEC5 ECU in boot mode successfully. Install ECU back into the vehicle. Flex is unable to connect to it via OBD.

The vehicle starts and diagnostics work normally.
Do I need any adapter?

Here is the clue.

It’s CAN FD model with SGW security gateway. 

There is no bypass for this vehicle yet.

SGW is in BCM.

Unlock – yes, read/write – no.

 

Q: If I unlock a Chrysler GPEC5 using Flex, can I then read it with any other tool via OBD2, after unlock with flex we can use it with HPTuners Read &Write?

A:  I was able to Read with HP Tuners after I performed the unlock with FLEX. Whereas before the unlock, I was unable to read with HP Tuners.

But being able to at least read via OBD with HP Tuners after the FLEX Unlock is a huge step.