Once into the Dump Tool of the ECU Programmint tool, you have an option to read, copy and update the ISN of the TCU trough the dedicated “ISN” button. If you have the ISN of the original TCU, you can write it into the donor unit. You just need to manually input the ISN you need, and click save, the software would ask you to save the newly generated dump file, and you need to write it into the TCU. If you do this, you should not need to do the procedure with IGN ON and IGN OFF for adaptation, described in the next section.