[emhtuning]

That's strange. Is any error stored?
You can try to flash the szl

I have no errors in Isata +.
The HBA button also works well (on / off) after VO code or Edit FDL ECU FRM (only Edit FDL Code FRM face even if there is no change in FRM).
But the HBA button does not work when the engine starts next time
I think that in the ECU FRM command there is something that switches HBA or does not wake the HBA.

first of all if the  FLA and  SZL is used then you need to to flash it with esys , then you need to code the whole car after adding 5AC to the FA , I don't understand why you keep FDL coding some ecu's while many other ECU's are also involved in this job .. the mirror is connected on CAN2 so any other ECU's on the same network must be coded , not only KOMBI and FRM .

without flashing to update the VIN , and without proper coding nothing will work . you want this to work right then you need to do it right too . forget about some codes and values to be edited because that's Esys job to ensure all ECU's are coded correctly ..