Hi Shawn,
F6X1 means firmware version F6, engineering version X1. It was used for customer’s evaluation before FW F6 official release.
So if all customers didn’t see an issue with FW F6X1, then we can remove X1 and proceed official FW F6 release to the NXP production line.
However if any customers saw any issue with FW F6X1, then we will come out FW F6X2 to fix it before we can release FW F6.
Currently FW F6X1 is identical to the FW6 in terms of functionality and customers can only order FW F6 (or Fn).
Best regards,
Tomas
PS: If this answer helps to solve your question, please mark it as "Correct". Thank you.
