I got stuck with the MSP-EXP430FR5739 and tried to unlock it with BSL_Scripter.exe from slau319a, using BSL_Scripter.exe script.txt from "Demo Scripts" 5438_Open_JTAG, but it didn't work.
When setting the communication to USB the result of each line was DONE, and setting the communication to COM10 (which is the assigned COM port of my MSP-EXP430FR5739 board) the results of Mass Erase: and RX Password: have been FAIL(ee), the result of Writing JTAG_UNLOCK.txt to device: was FAIL writing data block starting at 17fc. But the device is still locked.
I assume the MSP430FR5739 needs a special BSL-Scripter. Where do I find it?