Problem:
When i do Fiat MJD9DF with foxflash over bench I have a problem with write- error full system locked. Is it possible write over obd or when i try jtag mode will be unlocked?
Solution:
Use OBD driver or Jtag mode.
Jtag is safe.
Do it over OBD and working as well.
If do it with fox flash in jtag mode, check Jtag pinouts here