I have used the Mini GPS software to reset my baud rate on the LS20031 to 4800. Unfortunately, every time I turn off the unit my setting is lost and it reverts to 57000. I have also tried the PMKT message but never got this to work at all for 4800 baud. I have come to the conclusion that my LS20031 isn’t suppose to run at 4800. Is there a solution out there? Thanks!