[FSCmap]

This solution will fail.
It was a waste of time.
When i flush except cddeploy, menus etc. are displayed on the monitor.
However, inserting cafd and vo code will cause a WDBI_PLAIN error and can not include cafd.
The model and fa are normal, there is no inconsistency of vin.

You can use coding unlock function to code ID4 to ID5 without any restrictions and errors. 
For example it can be done by FemtoEVO.

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It is an additional question.
① Before flushing, should fsc of id 4 be deleted with tool 32?
② Should I use the FA in the sample

No, you don't need to clear FSC.
You need to modify your FA to use it with ID5/ID6.