I just had an issue with PS2 3v GP-9 diesel where the sound abruptly stopped working, while all other functions continued normally. After trying, unsuccessfully the "feature reset", I decided to try uploading a new GP-9 sound file.
I've done this about 30 times before but this time I keep getting the failure message after "check engine state 3 times".
Tried a different 3v PS2 board - same result.
Tried a different computer - same result, even though both machines successfully uploaded files on previous occasions.
I'm using MTH Consumer Loader v2.3 and my TIU is version 4.20.
I can't figure out where I'm going wrong - can anyone suggest a solution?
I subsequently discovered that the original PS-2 board was OK - the speaker had failed!